Keyword: sun

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  • Using the Sun as a Cosmic Telescope

    05/31/2017 2:31:53 AM PDT · by LibWhacker · 17 replies
    Scientific American ^ | May 30, 2017 | Slava G. Turyshev, Michael Shao
    Astronomers want to harness [the Sun's] spacetime-warping gravity as a lens to image the surface of exoplanets in astonishing detail The bluish ring is a distant galaxy whose image has been magnified and warped by the gravity of a reddish galaxy in the foreground Credit: ESA/Hubble & NASA Wikimedia Within just a few years, astronomers may at last find a planet that shows signs of life as we know it, in the form of atmospheric gases that betray signs of biological activity. This would be a transformational event for our civilization. But, what would we do next? How could we...
  • Total Solar Eclipse 2017: When, Where and How to See It (Safely)

    03/01/2017 10:24:23 AM PST · by Red Badger · 57 replies
    SPACE.com ^ | February 27, 2017 05:23pm ET | By Mike Wall, Space.com Senior Writer
    On Aug. 21, 2017, American skywatchers will be treated to a rare and spectacular celestial show — the first total solar eclipse visible from the continental United States in nearly four decades. Next year's "Great American Total Solar Eclipse" will darken skies all the way from Oregon to South Carolina, along a stretch of land about 70 miles (113 kilometers) wide. People who descend upon this "path of totality" for the big event are in for an unforgettable experience, said eclipse expert Jay Pasachoff, an astronomer at Williams College in Massachusetts. "It's a tremendous opportunity," Pasachoff told Space.com. "It's a...
  • A HOLE IN THE SUN'S ATMOSPHERE:

    01/31/2017 4:02:36 AM PST · by tired&retired · 30 replies
    Spaceweather.com ^ | Jan. 31, 2017
    A large, canyon-shaped hole has opened in the sun's atmosphere, and it is spewing a stream of solar wind directly toward Earth. NASA's Solar Dynamics Observatory photographed the structure, which stretches more than halfway across the face of the sun:(see pic below) This is a "coronal hole" (CH)--a region where the sun's magnetic field opens up and allows solar wind to escape. NASA's STEREO spacecraft recently sampled the stream flowing from this hole and the velocity was unusually high: nearly 750 km/s. Such a fast-moving stream will likely spark Arctic auroras when it arrives on Feb. 1st.
  • A LARGE HOLE IN THE SUN'S ATMOSPHERE is turning toward Earth.

    01/02/2017 10:19:07 AM PST · by tired&retired · 87 replies
    Spaceweather ^ | Monday, Jan. 2, 2017
    A LARGE HOLE IN THE SUN'S ATMOSPHERE Stretching more than halfway across the face of the sun is turning toward Earth. There is a "coronal hole"--a region in the sun's atmosphere where the magnetic field has opened up, allowing solar wind to escape. A stream of solar wind flowing from this coronal hole could reach Earth as early as Jan. 4th (Jan. 5th is more likely), sparking G1-class geomagnetic storms. Polar sky watchers should be alert for auroras later this week.
  • The sun’s surface spins more slowly than the rest of the star. This may be why

    12/21/2016 7:12:28 PM PST · by MtnClimber · 22 replies
    Science | 21 Dec, 2016 | Ilima Loomis
    Sunbeams—what a drag. That’s the conclusion of physicists trying to solve a longstanding mystery: why the sun’s surface rotates more slowly than its inner core. The team argues that energy radiating outward from the sun pushes back slightly as it is expelled, providing just enough resistance to put on the brakes. The hypothesis is supported by a new observation: that the thin “skin” of the sun rotates more slowly than layers just beneath. “I really can’t believe nobody has thought of this,” says Hugh Hudson, a solar physicist at the University of California, Berkeley, who was not involved in the...
  • Driver Smashes into Santa Clara Fire Hydrant, Lands Car Inside Pizza Parlor

    10/22/2016 5:08:50 PM PDT · by nickcarraway · 6 replies
    A car collision early Saturday in Santa Clara sent a powerful stream of water shooting several feet into the air. The crash occurred shortly after 1 a.m. when a driver plowed into a fire hydrant before eventually landing the vehicle inside Stuft Pizza located near the intersection of Homestead and Woodhams Roads, officials said. Firefighters spent roughly 30 minutes shutting off the water, officials said. The driver of the vehicle fled the scene on foot before being apprehended near his home several blocks away, officials said. No one was injured and the Santa Clara Police Department is currently investigating the...
  • How Can We Save The Sun?

    09/25/2016 6:21:25 PM PDT · by LibWhacker · 46 replies
    Universe Today ^ | 9/23/16 | Fraser Cain
    How Can We Save The Sun? Published: 23 Sep , 2016 by Fraser Cain Video Remember the movie Sunshine, where astronomers learn that the Sun is dying? So a plucky team of astronauts take a nuclear bomb to the Sun, and try to jump-start it with a massive explosion. Yeah, there’s so much wrong in that movie that I don’t know where to start. So I just won’t.Seriously, a nuclear bomb to cure a dying Sun?Here’s the thing, the Sun is actually dying. It’s just that it’s going to take about another 5 billion years to run of fuel in...
  • A Desperate Attempt to Solve an Intractable Problem ("ancient" earth, young sun)

    08/01/2016 2:13:04 PM PDT · by fishtank · 8 replies
    Proslogion ^ | Jul. 28, 2016 | Dr. Jay L. Wile
    A Desperate Attempt to Solve an Intractable Problem Jul. 28, 2016 One of the many problems associated with an ancient earth is the young, faint sun. In a nutshell, we think we understand the way a star produces energy, and based on this understanding, a star starts off dim and grows brighter over time. Based on what we know, then, the sun should have been about 25% dimmer 3.8 billion years ago, when most evolutionists think life first emerged on earth. However, if the sun really were 25% dimmer back then, the earth would be far too frigid to support...
  • Quasar Found 420 Trillion Times Brighter Than Our Sun

    07/29/2016 3:23:48 PM PDT · by blam · 49 replies
    Astronomy Trek ^ | 2016 | Astro Trek
    Quasar Found 420 Trillion Times Brighter Than Our SunAn international team of astronomers have discovered a huge quasar 420 trillion times brighter than our sun around 12.8 billion light years away from Earth, placing its formation around 875 million years after the big bang. The ancient object is powered by a massive black hole and contains a staggering 12 billion solar masses, surprising scientists who had not expected such a huge bright quasar so close to the dawn of time. The quasar was found using telescopes located in China, Hawaii, Arizona, and Chile, and as Xue-Bing Wu, of Peking...
  • Sun Makes Nervous Face with Hole in Its Head (Video)

    07/16/2016 6:31:12 PM PDT · by BenLurkin · 17 replies
    space.com ^ | 07/15/2016 | Mike Wall
    The sun has been making some anxious faces lately — but you'd be worried, too, if a huge hole had just opened up on your head. The sun's apparent nervousness crops up in photos captured over the past few days by NASA's Solar Dynamics Observatory (SDO); you can see the gorgeous images compiled into a video here. The sun's "eyes" are actually active regions, which serve as launch pads for solar flares and the eruptions of superheated solar plasma known as coronal mass ejections (CMEs). And the anxious, crinkly mouth is a coronal hole, a relatively cool and dark region...
  • Doomsday looming as Sun goes blank sparking ice age fears

    06/28/2016 6:43:48 PM PDT · by rickmichaels · 73 replies
    Daily Star ^ | 28th June 2016 | Joshua Nevett
    Astonishing images from NASA reveal no visible sunspots are currently visible on its surface. This has caused the star to go into "cue call" mode having entered its quietest period for more than a century, Vencore Weather claims. Decreased activity is not unusual as solar activity changes the volatile star's surface in 11-year cycles, astronomers say. But researchers are warning this current cycle could have a devastating impact on Earth's atmosphere, possibly ushering in a second ice age, similar to the one which began in 1645. Paul Dorian of Vencore Weather says the blank Sun is a sign that the...
  • How Global Warming Will Someday End Life On Earth (Not what think Alert)

    05/31/2016 1:05:10 PM PDT · by Oldeconomybuyer · 24 replies
    Forbes ^ | May 31, 2016 | by Ethan Siegel
    We like to think of our planet as perfect for life, having met all the conditions we know of for life to exist, flourish and thrive for billions of years. You see, back when the Solar System was younger, the Sun was not just younger, but also cooler. The way a star gets its energy is from nuclear fusion in its core: burning hydrogen into helium in our Sun’s case. Put this all together, and we get an inescapable conclusion: as a star ages and burns through more and more of its fuel, it gives off ever increasing amounts of...
  • Is the Sun DISINTEGRATING? NASA spots monster hole open up on our star

    05/26/2016 5:48:32 PM PDT · by NormsRevenge · 84 replies
    Express UK ^ | 5/26/16 | Jon Austin
    NASA has revealed that a massive hole, measuring more than ten per cent of the Sun's surface area, has opened up on our star. ... NASA says the huge hole is actually not of great concern, but it remains unclear why the coronal holes actually form. ..
  • A Rare Celestial Crossing: Mercury Will Transit the Sun on May 9

    05/02/2016 11:43:18 AM PDT · by BenLurkin · 10 replies
    Space.com ^ | Nola Taylor Redd,
    Although both Mercury and Venus circle between the Earth and the sun on every orbit (with Mercury passing between the two bodies three times each Earth year), the three planets don't sit in a flat orbit compared to one another. Only when Earth and a passing planet line up is the interior world visible to skywatchers as it crosses the sun. Mercury's transits currently take place in either early May or November. It is during those months that Earth's orbital plane is intersected by Mercury's, according to NASA's Goddard Space Flight Center. However, the orientation of the two orbital planes...
  • New York Sun Endorses Ted Cruz

    04/16/2016 8:18:06 AM PDT · by Engraved-on-His-hands · 91 replies
    Brietbart ^ | April 16, 2016 | Susan Berry
    The New York Sun announced it is endorsing Sen. Ted Cruz (R-TX)97% in the Republican primary Tuesday. According to the Sun: It hasn’t been our normal practice to endorse in the primaries, but this year the vote, set for Tuesday, will take on outsized importance as we career toward a contested convention. The junior senator from Texas has emerged from a crowded field by dint of his fidelity to principles — limited, constitutional government, sound money, free markets, and a strong foreign policy — that couldn’t be at higher premium. They are the true New York Values. Regardless of the...
  • Astronomy Picture of the Day -- Combined Solar Eclipse Corona from Earth and Space

    04/12/2016 7:33:57 AM PDT · by SunkenCiv · 11 replies
    NASA ^ | Tuesday, April 12, 2016 | (see photo credit)
    Explanation: Sometimes, a total eclipse is a good time to eye the Sun. Taking advantage of an unusual juxtaposition of Earth, Moon and Sun, the featured image depicts the total solar eclipse that occurred last month as it appeared -- nearly simultaneously -- from both Earth and space. The innermost image shows the total eclipse from the ground, with the central pupil created by the bright Sun covered by a comparatively dark Moon. Surrounding the blocked solar disk is the tenuous corona of Sun imaged in white light, easily visible from the ground only during an eclipse. Normally, this corona...
  • Deadly stars: Our sun could also be superflare star

    03/28/2016 9:41:02 AM PDT · by JimSEA · 20 replies
    Science Daily ^ | 3/24/16 | Christoffer Karoff, et al
    Earth is often struck by solar eruptions. These eruptions consist of energetic particles that are hurled away from the Sun into space, where those directed towards Earth encounter the magnetic field around our planet. When these eruptions interact with Earth's magnetic field they cause beautiful auroras. A poetic phenomenon that reminds us, that our closest star is an unpredictable neighbor. When the Sun pours out gigantic amounts of hot plasma during the large solar eruptions, it may have severe consequences on Earth. Solar eruptions are, however, nothing compared to the eruption we see on other stars, the so-called 'superflares'. Superflares...
  • Dying star offers glimpse of our sun's future

    03/08/2016 8:27:17 AM PST · by Red Badger · 25 replies
    phys.org ^ | March 8, 2016 | Provided by: European Space Agency
    Credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA). Acknowledgment: R. Sahai and J. Trauger (Jet Propulsion Laboratory) ------------------------------------------------------------------------------------------------------------------------------------------------ This is a final act of celestial beauty before the long fade into cosmic history. Invisibly buried in the centre of this colourful swirl of gas is a dying star, roughly the same mass as the sun. As a star ages, the nuclear reactions that keep it shining begin to falter. This uncertain energy generation causes the stars to pulsate in an irregular way, casting off its outer layers into space. As the star sheds these outer gases, the super-hot core...
  • Cosmic Cycles, not Carbon Dioxide, Control Climate

    01/24/2016 8:32:58 AM PST · by Beave Meister · 25 replies
    The Heartland Institute ^ | 1/21/2016 | Viv Forbes
    Those who think the political war on carbon will cool the globe or keep climate stable need to study climate history. Temperatures on Earth dance to a cyclic rhythm every hour, every day, every month, every season, every year, and to every beat of the sun-spot and glacial cycles. The daily solar cycle causes continual changes in temperature for every spot on Earth. It produces the frosts at dawn, the mid-day heat and the cooling at sunset. It is regulated by rotation of the Earth. Superimposed on the daily solar cycle is the monthly lunar cycle, driven by the orbit...
  • Clinton talks Iraq and Benghazi with the Sun ed board

    12/31/2015 3:06:15 PM PST · by Nachum · 7 replies
    The Sun ^ | 12/31/2015 | Sun editorial board
    Conway- Democratic Presidential Candidate Hillary Clinton, at an editorial board meeting Tuesday, sparred with a conservative columnist over Benghazi and spoke about how she'd address opioid addiction. The former first lady, secretary of state and senator from New York is running neck-and-neck with Vermont Sen. Bernie Sanders in the New Hampshire Democratic primary polls. A third challenger, Martin O'Malley, is a distant third. The primary is Feb. 9. Clinton took New Hampshire in 2008 and was the first woman to win a major party's presidential primary, but ultimately the nomination went to Barack Obama. Before getting into the details of...