2012` Q1 FReepathon. Target: $94,000 Receipts & Pledges to-date: $86,202
91%  
Woo hoo!! Less than $8k to go!! Thank you all very much!!

Astronomy (General/Chat)

Brevity: Headers | « Text »
  • 10-Year-Old Accidentally Creates New Molecule in Science Class

    02/17/2012 3:59:47 AM PST · by SunkenCiv · 23 replies
    Popular Science ^ | February 3, 2012 | Dan Nosowitz & The Mary Sue via Gizmodo
    Clara Lazen is the discoverer of tetranitratoxycarbon, a molecule constructed of, obviously, oxygen, nitrogen, and carbon. It's got some interesting possible properties, ranging from use as an explosive to energy storage. Lazen is listed as the co-author of a recent paper on the molecule. But that's not what's so interesting and inspiring about this story. What's so unusual here is that Clara Lazen is a ten-year-old fifth-grader in Kansas City, MO. Kenneth Boehr, Clara's science teacher, handed out the usual ball-and-stick models used to visualize simple molecules to his fifth-grade class. But Clara put the carbon, nitrogen, and oxygen atoms...
  • Astronomy Picture of the Day -- At the West Wall of Aristarchus Crater

    02/17/2012 2:53:26 AM PST · by SunkenCiv · 13 replies
    NASA ^ | February 17, 2012 | (see photo credit)
    Explanation: Aristarchus Plateau is anchored in the vast lava flows of the Moon's Oceanus Procellarum. At the plateau's southeastern edge lies the spectacular Aristarchus Crater, an impact crater 40 kilometers wide and 3 kilometers deep. Scan along this remarkable panorama and you will find yourself gazing directly at the crater's west wall for some 25 kilometers. Features along the terraced wall include dark impact melt and debris deposits, bright excavated material, and boulders over 100 meters wide. At a full resolution of 1.6 meters per pixel, the sharp mosaic was created from images recorded by the Lunar Reconnaissance Orbiter's narrow...
  • Search for Habitable Alien Planets Hampered by Gravity

    02/16/2012 4:22:26 AM PST · by SunkenCiv · 20 replies
    IB Times ^ | Tuesday, February 14, 2012 | ranina sanglap
    The search for habitable alien planets will be harder because tidal forces could remove water from planets to leave them dry worlds. Tidal heating could affect searches for habitable exoplanet, according to researchers from the University of Washington. Strong tidal forces could render planets in the habitable zone unlivable. Tidal heating occurs as orbital and rotational energy is dissipated as heat on the crust of a planet or a moon. "This has fundamentally changed the concept of a habitable zone," said researcher Rory Barnes, a planetary scientist and astrobiologist at the University of Washington... A planet could experience tidal heating...
  • Astronomy Picture of the Day -- NGC 5965 and NGC 5963 in Draco

    02/16/2012 3:33:03 AM PST · by SunkenCiv · 16 replies
    NASA ^ | February 16, 2012 | (see photo credit)
    Explanation: These two spiral galaxies make a photogenic pair, found within the boundaries of the northern constellation Draco. Contrasting in color and orientation, NGC 5965 is nearly edge-on to our line of sight and dominated by yellow hues, while bluish NGC 5963 is closer to face-on. Of course, even in this well-framed cosmic snapshot the scene is invaded by other galaxies, including small elliptical NGC 5969 at the lower left. Brighter, spiky stars in our own Milky Way are scattered through the foreground. Though they seem to be close and of similar size, galaxies NGC 5965 and NGC 5963 are...
  • Scientists Find New Clues About the Interiors of 'Super-Earth' Exoplanets

    02/15/2012 6:52:35 PM PST · by SunkenCiv · 9 replies
    Universe Today ^ | Monday, February 13, 2012 | Paul Scott Anderson
    As we learned in science class in school, the Earth has a molten interior (the outer core) deep beneath its mantle and crust. The temperatures and pressures are increasingly extreme, the farther down you go. The liquid magmas can "melt" into different types, a process referred to as pressure-induced liquid-liquid phase separation. Graphite can turn into diamond under similar extreme pressures. Now, new research is showing that a similar process could take place inside "Super-Earth" exoplanets, rocky worlds larger than Earth, where a molten magnesium silicate interior would likely be transformed into a denser state as well. Simply put, the...
  • When Stars Play Planetary Pinball

    02/15/2012 6:43:00 PM PST · by SunkenCiv · 10 replies
    Universe Today ^ | Monday, February 7, 2012 | Paul Scott Anderson
    The gravitational pull of large gas giant planets can affect the orbits of smaller planets; that scenario is thought to have occurred in our own solar system. In some cases, the smaller planet may be flung into a much wider orbit, perhaps even 100 times wider than Pluto's. In the case of single stars, that's normally how it ends. In a binary star system, however, the two stars may play a game of "cosmic pinball" with the poor planet first. Moeckel and Dimitri conducted simulations of binary star systems, with two sun-like stars orbiting each other at distances between 250...
  • Defining the Structure of Exoplanets

    02/15/2012 6:28:28 PM PST · by SunkenCiv · 6 replies
    Astrobiology Magazine ^ | February 5, 2012 | unattributed
    This artist's impression shows the super-Earth exoplanet GJ 1214b passing in front of its faint red parent star. Credit: ESO/L. Calçada There are many models predicting the potential sizes and locations for Earth-like planets. The new equation-of-state work performed by Lawrence Livermore National Laboratory scientists and their collaborators will help interpret the structure of exoplanets. Image Credit: Marc Kuchner/NASA GSFC
  • When straying Jupiter went on the pull

    02/15/2012 4:46:03 AM PST · by SunkenCiv · 15 replies
    SkyMania ^ | February 13th, 2012 | Kulvinder Singh
    The path of true love never runs smooth, it is said. Especially on Valentine's Day. And for young planets, that path turns out to be an inward-moving annulus. A simulation by scientists in France and USA appears to show that Jupiter once strayed to flirt with the inner Solar System, before being "jilted" and sent back to its present-day position. The effect of this was to form the inner planets, according to the theory, which comes up with mass ratios for Earth and Mars similar to that observed today and which, remarkably, also accurately depicts the Asteroid Belt. If the...
  • Astronomy Picture of the Day -- Merope's Reflection Nebula

    02/15/2012 3:49:22 AM PST · by SunkenCiv · 6 replies
    NASA ^ | February 15, 2012 | (see photo credit)
    Explanation: Reflection nebulas reflect light from a nearby star. Many small carbon grains in the nebula reflect the light. The blue color typical of reflection nebula is caused by blue light being more efficiently scattered by the carbon dust than red light. The brightness of the nebula is determined by the size and density of the reflecting grains, and by the color and brightness of the neighboring star(s). NGC 1435, pictured above, surrounds Merope (23 Tau), one of the brightest stars in the Pleiades (M45). The Pleiades nebulosity is caused by a chance encounter between an open cluster of stars...
  • Astronomy Picture of the Day -- The Rosette Nebula

    02/14/2012 7:24:39 PM PST · by SunkenCiv · 10 replies
    NASA ^ | February 14, 2012 | (see photo credit)
    Explanation: The Rosette Nebula is not the only cosmic cloud of gas and dust to evoke the imagery of flowers -- but it is the most famous. At the edge of a large molecular cloud in Monoceros, some 5,000 light years away, the petals of this rose are actually a stellar nursery whose lovely, symmetric shape is sculpted by the winds and radiation from its central cluster of hot young stars. The stars in the energetic cluster, cataloged as NGC 2244, are only a few million years old, while the central cavity in the Rosette Nebula, cataloged as NGC 2237,...
  • Astronomy Picture of the Day -- An Unusual Venusian Oval

    02/13/2012 6:26:16 PM PST · by SunkenCiv · 12 replies
    NASA ^ | February 13, 2012 | (see photo credit)
    Explanation: Why would Venus appear oval? Venus has been seen countless times from the surface of the Earth, and every time the Earth's atmosphere has dispersed its light to some degree. When the air has just the right amount of dust or water droplets, small but distant objects like Venus appear spread out into an angularly large aureole. Aureoles are not unusual to see and are frequently noted as circular coronas around the Sun or Moon. Recently, however, aureoles have been imaged that are not circular but distinctly oval. The above oval Venusian aureole was imaged by the astrophotographer who...
  • Scale of the Universe

    Fun and interesting interactive look at the scale of the universe. http://images.4channel.org/f/src/589217_scale_of_universe_enhanced.swf
  • Astronomy Picture of the Day -- Orion in Gas, Dust, and Stars

    02/12/2012 7:04:54 AM PST · by SunkenCiv · 11 replies
    NASA ^ | February 12, 2012 | (see photo credit)
    Explanation: The constellation of Orion holds much more than three stars in a row. A deep exposure shows everything from dark nebula to star clusters, all embedded in an extended patch of gaseous wisps in the greater Orion Molecular Cloud Complex. The brightest three stars on the far left are indeed the famous three stars that make up the belt of Orion. Just below Alnitak, the lowest of the three belt stars, is the Flame Nebula, glowing with excited hydrogen gas and immersed in filaments of dark brown dust. Below the frame center and just to the right of Alnitak...
  • Astronomy Picture of the Day -- A February Moon's Halo

    02/11/2012 5:47:51 PM PST · by SunkenCiv · 10 replies
    NASA ^ | February 11, 2012 | (see photo credit)
    Explanation: Lighting the night last Tuesday, February's Full Moon is sometimes called the Snow Moon. But the Moon was not quite full in this mosaicked skyscape recorded on February 2 south of Budapest, Hungary, and there was no snow either. Still, thin clouds of ice crystals hung in the cold, wintry sky creating this gorgeous lunar halo. Refraction of moonlight by the six-sided crystals produce the slightly colored halo with its characteristic radius of 22 degrees. Just below the Moon is bright star Aldebaran. Also well within the halo at the right is the Pleiades star cluster. At the lower...
  • Astronomy Picture of the Day -- At the Core of NGC 6752

    02/11/2012 5:47:48 PM PST · by SunkenCiv · 23 replies
    NASA ^ | February 10, 2012 | (see photo credit)
    Explanation: This sharp Hubble Space Telescope view looks deep into NGC 6752. Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 holds over 100 thousand stars in a sphere about 100 light-years in diameter, but the Hubble image frame spans the central 10 or so light-years and resolves stars near the dense cluster core. In fact the frame includes some of the cluster's blue straggler stars, stars which appear to be too young and massive to exist in a cluster whose...
  • Astronomy Picture of the Day -- Trees, Stars, Aurora!

    02/08/2012 9:26:49 PM PST · by SunkenCiv · 12 replies
    NASA ^ | February 09, 2012 | (see photo credit)
    Explanation: Have you ever seen an aurora? Auroras are occurring again with increasing frequency. With the Sun being unusually dormant over the past four years, the amount of Sun-induced auroras has been unusually low. More recently, however, our Sun has become increasingly active and exhibiting a greater abundance of sunspots, flares, and coronal mass ejections. Solar activity like this typically expels charged particles into the Solar System, some of which may trigger Earthly auroras. Two weeks ago, beyond trees and before stars, a solar storm precipitated the above timelapse displays of picturesque auroras above Ravnastua, Skoganvarre and Lakselv, Norway. Curtains...
  • Thanks to Plants, We Will Never Find a Planet Like Earth

    02/08/2012 6:01:06 PM PST · by LibWhacker · 25 replies
    Scientific American ^ | 2/1/12 | Mark Fischetti
    Earth's flora is responsible for the glaciers and rivers that have created this planet's distinctive landscapeAstronomers are finding lots of exoplanets that are orbiting stars like the sun, significantly raising the odds that we will find a similar world. But if we do, the chance that the surface of that planet will look like ours is very small, thanks to an unlikely culprit: plants. We all know how Earth's landscape came about, right? Oceans and land masses formed, mountains rose, and precipitation washed over its surface; rivers weathered bare rock to create soil and plants took root. Well, new research...
  • Astronomy Picture of the Day -- Enceladus Backlit by Saturn

    02/08/2012 4:28:02 AM PST · by SunkenCiv · 10 replies
    NASA ^ | February 08, 2012 | (see photo credit)
    Explanation: This moon is shining by the light of its planet. Specifically, a large portion of Enceladus pictured above is illuminated primarily by sunlight first reflected from the planet Saturn. The result is that the normally snow-white moon appears in the gold color of Saturn's cloud tops. As most of the illumination comes from the image left, a labyrinth of ridges throws notable shadows just to the right of the image center, while the kilometer-deep canyon Labtayt Sulci is visible just below. The bright thin crescent on the far right is the only part of Enceladus directly lit by the...
  • New paper and stunning video from the Space Station – UHI much?

    02/07/2012 6:52:11 PM PST · by Ernest_at_the_Beach · 9 replies
    watts up with that? ^ | February 7, 2012 | Anthony Watts
    Professor Ross McKitrick has just released a new paper on UHI, after reading it, it reminds me of this video from the space station. Weather stations exist in the points of light that define humanity at night, even in rural out of the way places, like the Arctic, where there’s a point of light, indicating humanity and energy use, you’ll likely find a weather station used to monitor climate. Like the dark, humans don’t like the cold either, so where there’s light, there’s heat.Video Link Ross McKitrick writes: I have released a new discussion paper addressing some ongoing issues in...
  • Astronomy Picture of the Day -- The Belt of Venus Over Mercedes, Argentina

    02/07/2012 4:22:45 AM PST · by SunkenCiv · 15 replies
    NASA ^ | February 07, 2012 | (see photo credit)
    Although you've surely seen it, you might not have noticed it. During a cloudless twilight, just before sunrise or after sunset, part of the atmosphere above the horizon appears slightly off-color, slightly pink or orange. Called the Belt of Venus, this off-color band between the dark eclipsed sky and the blue sky can be seen in nearly every direction including that opposite the Sun. Straight above, blue sky is normal sunlight reflecting off the atmosphere. In the Belt of Venus, however, the atmosphere reflects light from the setting (or rising) Sun which appears more red. Below the Belt of Venus,...
  • Astronomy Picture of the Day -- Dust of the Orion Nebula

    02/06/2012 4:26:18 AM PST · by SunkenCiv · 6 replies
    NASA ^ | February 06, 2012 | (see photo credit)
    Explanation: What surrounds a hotbed of star formation? In the case of the Orion Nebula -- dust. The entire Orion field, located about 1600 light years away, is inundated with intricate and picturesque filaments of dust. Opaque to visible light, dust is created in the outer atmosphere of massive cool stars and expelled by a strong outer wind of particles. The Trapezium and other forming star clusters are embedded in the nebula. The intricate filaments of dust surrounding M42 and M43 appear brown in the above image, while central glowing gas is highlighted in red. Over the next few million...
  • Astronomy Picture of the Day -- Lunation

    02/05/2012 8:57:07 AM PST · by SunkenCiv · 30 replies
    NASA ^ | February 05, 2012 | (see photo credit)
    Explanation: Our Moon's appearance changes nightly. This time-lapse sequence shows what our Moon looks like during a lunation, a complete lunar cycle. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The Moon always keeps the same face toward the Earth. The Moon's apparent size changes slightly, though, and a slight wobble called a libration is discernible as it progresses along its elliptical orbit. During the cycle, sunlight reflects from the Moon at different angles, and so illuminates different features differently. A full lunation takes about 29.5 days, just under...
  • Congress acts to protect space industry from regulation

    02/04/2012 7:15:55 PM PST · by BenLurkin · 4 replies
    Bakersfield Californian ^ | Thursday, Feb 02 2012 04:54 PM | STEVEN MAYER staff writer
    The emerging commercial space industry is proving to be an important economic engine in eastern Kern County -- and beyond. But some have worried that the industry's "learning period" could be stalled if a moratorium on federal regulations is allowed to expire at the end of this year. Now it appears that won't happen. Rep. Kevin McCarthy, R-Bakersfield, the House majority whip, was able to insert a provision in the Federal Aviation Administration reauthorization bill that will extend the moratorium nearly four more years to Oct. 1, 2015. The House is expected to vote on it Friday, a McCarthy spokeswoman...
  • Astronomy Picture of the Day -- Comet Garradd and M92

    02/04/2012 6:35:20 AM PST · by SunkenCiv · 4 replies
    NASA ^ | February 04, 2012 | (see photo credit)
    Explanation: Sweeping slowly through the constellation Hercules, Comet Garradd (C2009/P1) passed with about 0.5 degrees of globular star cluster M92 on February 3. Captured here in its latest Messier moment, the steady performer remains just below naked-eye visibility with a central coma comparable in brightness to the dense, well-known star cluster. The rich telescopic view from New Mexico's, early morning skies, also features Garradd's broad fan shaped dust tail and a much narrower ion tail that extends up and beyond the right edge of the frame. Pushed out by the pressure of sunlight, the dust tail tends to trail the...
  • Astronomy Picture of the Day -- Inside the Eagle Nebula

    02/04/2012 5:56:20 AM PST · by SunkenCiv · 13 replies
    NASA ^ | February 03, 2012 | (see photo credit)
    Explanation: In 1995, a now famous picture from the Hubble Space Telescope featured Pillars of Creation, star forming columns of cold gas and dust light-years long inside M16, the Eagle Nebula. This remarkable false-color composite image revisits the nearby stellar nursery with image data from the orbiting Herschel Space Observatory and XMM-Newton telescopes. Herschel's far infrared detectors record the emission from the region's cold dust directly, including the famous pillars and other structures near the center of the scene. Toward the other extreme of the electromagnetic spectrum, XMM-Newton's X-ray vision reveals the massive, hot stars of the nebula's embedded star...
  • Is Space Digital?

    02/03/2012 5:46:10 AM PST · by LibWhacker · 7 replies
    Scientific American ^ | 1/17/12 | Michael Moyer
    An experiment going up outside of Chicago will attempt to measure the intimate connections among information, matter and spacetime. If it works, it could rewrite the rules for 21st-century physicsCraig Hogan believes that the world is fuzzy. This is not a metaphor. Hogan, a physicist at the University of Chicago and director of the Fermilab Particle Astrophysics Center near Batavia, Ill., thinks that if we were to peer down at the tiniest subdivisions of space and time, we would find a universe filled with an intrinsic jitter, the busy hum of static. This hum comes not from particles bouncing...
  • Astronomy Picture of the Day -- La Silla Star Trails North and South

    02/02/2012 6:00:24 PM PST · by SunkenCiv · 4 replies
    NASA ^ | February 02, 2012 | (see photo credit)
    Explanation: Fix your camera to a tripod and you can record graceful trails traced by the stars as planet Earth rotates on its axis. If the tripod is set up at ESO's La Silla Observatory, high in the Atacama desert of Chile, your star trails would look something like this. Spanning about 4 hours on the night of January 24, the image is actually a composite of 250 consecutive 1-minute exposures, looking toward the north. The North Celestial Pole, at the center of the star trail arcs, is just below the horizon in this southern hemisphere perspective. In the foreground,...
  • Astronomy Picture of the Day -- Red Aurora Over Australia

    02/01/2012 8:24:04 PM PST · by SunkenCiv · 17 replies
    NASA ^ | February 01, 2012 | (see photo credit)
    Explanation: Why would the sky glow red? Aurora. Last week's solar storms, emanating mostly from active sunspot region 1402, showered particles on the Earth that excited oxygen atoms high in the Earth's atmosphere. As the excited element's electrons fell back to their ground state, they emitted a red glow. Were oxygen atoms lower in Earth's atmosphere excited, the glow would be predominantly green. Pictured above, this high red aurora is visible just above the horizon last week near Flinders, Victoria, Australia. The sky that night, however, also glowed with more familiar but more distant objects, including the central disk of...
  • Briggs schools the “Bad Astronomer” on statistics ( RE: “No Need to Panic About Global Warming” )

    02/01/2012 6:19:45 PM PST · by Ernest_at_the_Beach · 17 replies
    watts up with that? ^ | ebruary 1, 2012 | Anthony Watts
    That letter signed by 16 scientists saying there’s “No Need to Panic About Global Warming” to the Wall Street Journal has caused a great disturbance in the farce. At last count there were no less than  19 blog rebuttals plus one new WSJ op ed piece trying to convince the alliance that all is well. It didn’t work. But, they know the AGW Alliance Death Star has been compromised before its mission can be completed, the Rebellion has seen the plans and the Alliance knows it is only a matter of time before “the consensus” blows apart. Reports are that “Michael...
  • Scottish man launches meteorite-aged wine

    02/01/2012 12:51:42 PM PST · by DeoVindiceSicSemperTyrannis · 6 replies
    Telegraph ^ | 2-1-12
    Wine lovers looking to expand their palates by light-years have to look no further than this small Chilean vineyard where a British astronomer and winemaker has combined his two passions to create the first wine infused with celestial elements. Mr Hutcheon whose vineyard in San Vicente, 140 90 miles south of Santiago, has produced a Cabernet infused with a 4.5 billion-year-old meteorite. He first selects the grapes from his vineyard and then ferments the fruit for 25 days before beginning the year-long Malolactic fermentation process in a wine barrel containing the 7.6 centimetre (three-inch) meteorite. After 12 months, the meteorite-infused...
  • Astronomy Picture of the Day -- The Helix Nebula from the VISTA Telescope

    01/31/2012 7:06:50 PM PST · by SunkenCiv · 10 replies
    NASA ^ | January 31, 2012 | (see photo credit)
    Explanation: Will our Sun look like this one day? The Helix Nebula is one of brightest and closest examples of a planetary nebula, a gas cloud created at the end of the life of a Sun-like star. The outer gasses of the star expelled into space appear from our vantage point as if we are looking down a helix. The remnant central stellar core, destined to become a white dwarf star, glows in light so energetic it causes the previously expelled gas to fluoresce. The Helix Nebula, given a technical designation of NGC 7293, lies about 700 light-years away towards...
  • Kepler telescope team finds 11 new solar systems

    01/31/2012 4:03:29 PM PST · by DeoVindiceSicSemperTyrannis · 5 replies
    CAPE CANAVERAL - NASA's planet-hunting Kepler space telescope has found 11 new planetary systems, including one with five planets all orbiting closer to their parent star than Mercury circles the Sun, scientists said on Thursday. The discoveries boost the list of confirmed extra-solar planets to 729, including 60 credited to the Kepler team. The telescope, launched in space in March 2009, can detect slight but regular dips in the amount of light coming from stars. Scientists can then determine if the changes are caused by orbiting planets passing by, relative to Kepler's view. Kepler scientists have another 2,300 candidate planets...
  • NASA Probe Discovers 'Alien' Matter From Beyond Our Solar System (4 types of alien atoms)

    01/31/2012 2:13:25 PM PST · by NormsRevenge · 24 replies
    SPACE.com ^ | 1/31/12 | Denise Chow
    NASA / GSFC: Using the Interstellar Boundary Explorer (IBEX), NASA has sampled the galactic wind that has traveled from outside our solar system. Four types of atoms were found to be different from what we have in our Solar System.
  • 5 of the biggest unsolved mysteries in physics

    01/31/2012 2:06:57 PM PST · by NormsRevenge · 69 replies
    Yahoo ^ | 1/31/12 | Tecca - Today in Tech
    The mysteries of the universe are as vast and wide as existence itself. Throughout history, mankind has searched and struggled to find the answers tucked away inside the universe and everything we see around us. .. True, we have yet to come up with the answers to life, the universe, and everything — but oh do we have questions! Solving these mysteries may help to explain not only the creation of the universe, but also how it works, why it works, and possibly how it will end. 1. The Higgs boson The Higgs boson is a hypothetical particle whose accompanying...
  • Major x class solar flare

    01/30/2012 1:37:50 PM PST · by Ernest_at_the_Beach · 5 replies
    watts up with that? ^ | January 27, 2012 | Anthony Watts
    Blogging from my phoneCheck WUWT Solar Reference PageUpdated: It was an X1.7 class eruption,  it does not appear to be headed towards Earth. JTF
  • Giant Veil of “Cold Plasma” Discovered High Above Earth

    01/30/2012 1:20:59 PM PST · by Ernest_at_the_Beach · 22 replies
    watts up with that? ^ | January 27, 2012 | justthefactswuwt
    From National Geographic:Clouds of charged particles stretch a quarter the way to the moon, experts say.Clouds of “cold plasma” reach from the top of Earth’s atmosphere to at least a quarter the distance to the moon, according to new data from a cluster of European satellites.Earth generates cold plasma—slow-moving charged particles—at the edge of space, where sunlight strips electrons from gas atoms, leaving only their positively charged cores, or nuclei.(Find out how cold plasma might also help explain why Mars is missing its atmosphere.)Researchers had suspected these hard-to-detect particles might influence incoming space weather, such as this week’s solar flare...
  • Astronomy Picture of the Day -- Blue Marble Earth from Suomi NPP

    01/30/2012 4:08:28 AM PST · by SunkenCiv · 9 replies
    NASA ^ | January 30, 2012 | (see photo credit)
    Explanation: Behold one of the more detailed images of the Earth yet created. This Blue Marble Earth montage shown above -- created from photographs taken by the Visible/Infrared Imager Radiometer Suite (VIIRS) instrument on board the new Suomi NPP satellite -- shows many stunning details of our home planet. The Suomi NPP satellite was launched last October and renamed last week after Verner Suomi, commonly deemed the father of satellite meteorology. The composite was created from the data collected during four orbits of the robotic satellite taken earlier this month and digitally projected onto the globe. Many features of North...
  • Astronomy Picture of the Day -- Blue Marble Earth from Suomi NPP

    01/30/2012 4:08:06 AM PST · by SunkenCiv · 2 replies
    NASA ^ | January 30, 2012 | (see photo credit)
    Explanation: Behold one of the more detailed images of the Earth yet created. This Blue Marble Earth montage shown above -- created from photographs taken by the Visible/Infrared Imager Radiometer Suite (VIIRS) instrument on board the new Suomi NPP satellite -- shows many stunning details of our home planet. The Suomi NPP satellite was launched last October and renamed last week after Verner Suomi, commonly deemed the father of satellite meteorology. The composite was created from the data collected during four orbits of the robotic satellite taken earlier this month and digitally projected onto the globe. Many features of North...
  • Astronomy Picture of the Day -- Molecular Cloud Barnard 68

    01/29/2012 9:56:22 AM PST · by SunkenCiv · 12 replies
    NASA ^ | January 29, 2012 | (see photo credit)
    Explanation: Where did all the stars go? What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud. Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. The eerily dark surroundings help make the interiors of molecular clouds some of the coldest and most isolated places in the universe. One of the most notable of these dark absorption nebulae is a cloud toward the constellation Ophiuchus known as Barnard 68, pictured above. That no stars are visible in the center indicates...
  • Astronomy Picture of the Day -- Planet Aurora Borealis

    01/28/2012 8:49:34 AM PST · by SunkenCiv · 7 replies
    NASA ^ | January 28, 2012 | (see photo credit)
    Explanation: Illuminated by an eerie greenish light, this remarkable little planet is covered with ice and snow and ringed by tall pine trees. Of course, this little planet is actually planet Earth, and the surrounding stars are above the horizon near Östersund, Sweden. The pale greenish illumination is from a curtain of shimmering Aurora Borealis also known as the Northern Lights. The display was triggered when a giant solar coronal mass ejection (CME) rocked planet Earth's magnetosphere on January 24th and produced a strong geomagnetic storm. Northern hemisphere skygazers will also recognize the familiar orientation of stars at the left,...
  • Astronomy Picture of the Day -- NGC 3239 and SN 2012A

    01/28/2012 8:43:54 AM PST · by SunkenCiv · 2 replies
    NASA ^ | January 27, 2012 | (see photo credit)
    Explanation: About 40,000 light-years across, pretty, irregular galaxy NGC 3239 lies near the center of this lovely field of galaxies in the galaxy rich constellation Leo. At a distance of only 25 million light-years it dominates the frame, sporting a peculiar arrangement of structures, young blue star clusters and star forming regions, suggesting that NGC 3239 (aka Arp 263) is the result of a galaxy merger. Appearing nearly on top of the pretty galaxy is a bright, spiky, foreground star, a nearby member of our own Milky Way galaxy almost directly along our line-of-sight to NGC 3239. Still, NGC 3239...
  • Apollo 1: The Fire That Shocked NASA

    01/28/2012 8:17:47 AM PST · by iowamark · 34 replies
    Scienific American ^ | January 27, 2012 | Amy Shira Teitel
    NASA’s Apollo program began with one of the worst disasters the organization has ever faced. A routine prelaunch test turned fatal when a fire ripped through the spacecraft’s crew cabin killing all three astronauts. Today marks the 45th anniversary of the Apollo 1 fire, a tragic and preventable accident. There were warning signs, similar accidents that had claimed lives both in the United States and abroad. The Apollo 1 crew could have been saved from a gruesome death. Plugs Out The commander for Apollo 1 was Gus Grissom, one of the original Mercury astronauts whose first spaceflight was marred by...
  • Astronomy Picture of the Day -- NGC 4449: Star Stream for a Dwarf Galaxy

    01/26/2012 4:31:42 AM PST · by SunkenCiv · 10 replies
    NASA ^ | January 25, 2012 | (see photo credit)
    Explanation: A mere 12.5 million light-years from Earth, irregular dwarf galaxy NGC 4449 lies within the confines of Canes Venatici, the constellation of the Hunting Dogs. About the size of our Milky Way's satellite galaxy the Large Magellanic Cloud, NGC 4449 is undergoing an intense episode of star formation, evidenced by its wealth of young blue star clusters, pinkish star forming regions, and obscuring dust clouds in this deep color portrait. It's also holds the distinction of being the first dwarf galaxy with an identified tidal star stream, faintly seen at the lower right. Placing your cursor over the image...
  • 'Starbursts' and black holes lead to biggest galaxies

    01/25/2012 2:08:21 PM PST · by NormsRevenge · 21 replies
    BBC News ^ | 1/25/12 | BBC
    Frenetic star-forming activity in the early Universe is linked to the most massive galaxies in today's cosmos, new research suggests. This "starbursting" activity when the Universe was just a few billion years old appears to have been clamped off by the growth of supermassive black holes. An international team gathered hints of the mysterious "dark matter" in early galaxies to confirm the link. The findings appear in Monthly Notices of the Royal Astronomical Society. ... Using the 12-metre Atacama Pathfinder Experiment telescope in Chile, an international team led by Ryan Hickox of Dartmouth College studied the way distant galaxies from...
  • Astronomy Picture of the Day -- Opportunity Rover Spots Greeley Haven on Mars

    01/25/2012 4:20:45 AM PST · by SunkenCiv · 12 replies
    NASA ^ | January 25, 2012 | (see photo credit)
    Explanation: Where on Mars should you spend the winter? As winter approached in the southern hemisphere of Mars last November, the Opportunity rover had just this problem -- it needed a place to go. The reduced amount of sunlight impacting Opportunity's solar panels combined with the extra power needed to keep equipment warm could drain Opportunity's batteries. Therefore Opportunity was instructed to climb onto the 15 degree incline of Greeley's Haven, shown as the rocky slope ahead. The incline increased power input as Opportunity's solar panels now have greater exposure to sunlight, while also giving the rolling robot some interesting...
  • Astronomy Picture of the Day -- January Aurora Over Norway

    01/24/2012 6:45:23 PM PST · by SunkenCiv · 10 replies
    NASA ^ | January 24, 2012 | (see photo credit)
    Explanation: What's that in the sky? An aurora. A large coronal mass ejection occurred on our Sun five days ago, throwing a cloud of fast moving electrons, protons, and ions toward the Earth. Although most of this cloud passed above the Earth, some of it impacted our Earth's magnetosphere and resulted in spectacular auroras being seen at high northern latitudes. Pictured above is a particularly photogenic auroral corona captured last night above Grotfjord, Norway. To some, this shimmering green glow of recombining atmospheric oxygen might appear as a large eagle, but feel free to share what it looks like to...
  • Astronomy Picture of the Day -- Deep Orion Over the Canary Islands

    01/24/2012 6:38:39 PM PST · by SunkenCiv · 10 replies
    NASA ^ | January 23, 2012 | (see photo credit)
    Explanation: Which attracts your eye more -- the sky or the ground? On the ground are rocky peaks in Teide National Park on Tenerife Island of the Spanish Canary Islands off the northwestern coast of Africa. The volcanic landscape features old island summits and is sometimes used as a testbed for instruments on future Martian rovers. The lights of a nearby hotel shine on the far left. Storm clouds are visible on the horizon, artificially strutted from multiple exposures. Dividing the sky, across the middle of the above deep image, is the vertical band of the Milky Way Galaxy. The...
  • Huge Solar Eruption Sparks Strongest Radiation Storm in 7 Years

    01/23/2012 1:46:00 PM PST · by LucianOfSamasota · 32 replies
    Space.com ^ | 23 January 2012 | SPACE.com Staff
    A powerful solar eruption is expected to blast a stream of charged particles toward Earth tomorrow (Jan. 24), as the strongest radiation storm since 2005 rages on the sun. Early this morning (0359 GMT Jan. 23, which corresponds to late Sunday, Jan. 22 at 10:59 p.m. EST), NASA's Solar Dynamics Observatory caught an extreme ultraviolet flash from a huge eruption on the sun , according to the skywatching website Spaceweather.com. The solar flare spewed from sunspot 1402, a region of the sun that has become increasingly active lately. Several NASA satellites, including the Solar Dynamics Observatory, the Solar Heliospheric Observatory...
  • Solar Weather ( Possible Minor Geomagnetic Storm) 1-22-12

    01/22/2012 10:19:59 PM PST · by smokingfrog · 6 replies
    youtube | 22 Jan 2012 | J7409
    Solar Weather for January 22, 2012 with a possible minor geomagnetic storm.
  • Life spotted on Venus: Russian scientist

    01/22/2012 3:47:21 PM PST · by garjog · 64 replies
    Times of India ^ | Jan 21, 2012 | staff
    MOSCOW: Several objects resembling living beings were detected on photographs taken by a Russian landing probe in 1982 during a Venus mission, says an article published in the Solar System Research magazine. Leonid Ksanfomaliti of the Space Research Institute of Russia's Academy of Sciences published a research that analysed the photographs from the Venus mission made by a Soviet landing probe, Venus-13, in 1982. The photographs feature several objects, which Ksanfomaliti said, resembled a "disk", a "black flap" and a "scorpion".