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Keyword: exoplanet

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  • Newfound pink world lurks at solar system fringes

    03/26/2014 12:06:45 PM PDT · by Red Badger · 45 replies
    www.utsandiego.com ^ | 03-26-2014 | By ALICIA CHANG
    <p>LOS ANGELES (AP) ó Peering into the far reaches of the solar system, astronomers have spied a pink frozen world 7Ĺ billion miles from the sun.</p> <p>It's the second such object to be discovered in a region of space beyond Pluto long considered a celestial wasteland. Until now, the lone known resident in this part of the solar system was an oddball dwarf planet spotted in 2003 named Sedna after the mythological Inuit goddess who created the sea creatures of the Arctic.</p>
  • Has Nasa found a new Earth? Astronomer discovers first same-sized planet in a 'Goldilocks zone' ...

    03/25/2014 10:32:40 AM PDT · by Red Badger · 75 replies
    www.dailymail.co.uk ^ | PUBLISHED: 08:57 EST, 24 March 2014 | UPDATED: 10:03 EST, 24 March 2014 | By Victoria Woollaston
    The host star hasnít been named but was identified as an M1 dwarf M dwarfs make up 70% of stars in the galaxy and are smaller than our sun Nasa astronomers found a total of five planets orbiting this unnamed host The outermost planet sits in the starís habitable zone and may have liquid water on its surface This so-called goldilocks planet is believed to be 1.1 times the size of Earth Until now, the most Earth-like planet was Kepler-62f - 1.4 times the size Details of the new star system are due to be announced later this year The...
  • Top exoplanet finds of 2013

    01/04/2014 9:14:30 AM PST · by Farnsworth · 11 replies
    Science News ^ | Dec 28, 2013 | Ashley Yeager
    1. The Earthiest Kepler-78b is most similar to Earth in mass, diameter and composition; it could be made of rock with an iron core. But itís no Earth analog, whizzing around its star in 8.5 hours, with temperatures exceeding 2,000į Celsius (SN Online: 10/30/13). 2. The wettest HR 8799cís atmosphere lacks methane, which could signal life, but does have water and carbon monoxide (SN: 4/6/13, p. 5). Water has also been found in the atmospheres of WASP-17b, HD209458b, WASP-12b, WASP-19b and XO-1b. 3. The rogue Planetary candidate PSO J318.5-22 has no parent star. The object is roughly six times the...
  • How NASA revived the Kepler Space Telescope

    11/27/2013 1:31:42 PM PST · by Red Badger · 4 replies
    Phys.Org ^ | 11-26-2013 | Staff (Provided by NASA)
    You may have thought that NASA's Kepler spacecraft was finished. Well, think again. A repurposed Kepler Space telescope may soon start searching the sky again. A new mission concept, dubbed K2, would continue Kepler's search for other worlds, and introduce new opportunities to observe star clusters, young and old stars, active galaxies and supernovae. In May, the Kepler spacecraft lost the second of four gyroscope-like reaction wheels, which are used to precisely point the spacecraft, ending new data collection for the original mission. The spacecraft required three functioning wheels to maintain the precision pointing necessary to detect the signal of...
  • Tiny fireball exoplanet completes one year in 8.5 hours

    08/20/2013 11:32:49 AM PDT · by Ernest_at_the_Beach · 29 replies
    The Register ^ | 19th August 2013 | Neil McAllister
    Molten sphere could give clues to planetary mass Researchers at the Massachusetts Institute of Technology have discovered a new, Earth-sized exoplanet for which orbiting its star is literally all in a day's work.The newly discovered planet, dubbed Kepler 78b, completes one full revolution around its star in just 8.5 hours Ė fast enough that by the time you clock in at the office and clock out again, another solar year will have passed for Kepler 78b. To achieve this rapid orbital period, the planet revolves around its star at a distance 40 times closer than Mercury is to our sun.As...
  • Super-SVELTE BLUSH-PINK planet goes too far with star

    08/06/2013 11:25:08 AM PDT · by Ernest_at_the_Beach · 9 replies
    The Register ^ | 6th August 2013 | Brid-Aine Parnell,
    Low-mass Jupiter-like exoplanet challenges planetary formation theory Astronomers have detected a low-mass giant planet that challenges existing theories about how bigger worlds are formed.Artist's impression ... the Jupiter-like low-mass exoplanet GJ 504b The Jupiter-sized world, dubbed GJ 504b, was found much further out in its star's orbit than a planet its size should have been, if you go by existing planet-formation theory.GJ 504b weighs in at around four times Jupiter's mass, and is the lowest mass exoplanet* to be imaged orbiting a Sun-like star using direct imaging techniques.Given its similarity to Jupiter's size, NASA boffins were surprised to find that...
  • Hint of 150 MHz radio emission from the Neptune-mass extrasolar transiting planet HAT-P-11b

    02/25/2013 10:34:07 AM PST · by Red Badger · 57 replies
    Next Big Future ^ | 2/24/2013 | Brian Wang
    ince the radio-frequency emission from planets is expected to be strongly inÔ¨āuenced by their interaction with the magnetic Ô¨Āeld and corona of the host star, the physics of this process can be eÔ¨Äectively constrained by making sensitive measurements of the planetary radio emission. Up to now, however, numerous searches for radio emission from extrasolar planets at radio wavelengths have only yielded negative results. Here we report deep radio observations of the nearby Neptune-mass extrasolar transiting planet HAT-P-11b at 150 MHz, using the Giant Meterwave Radio Telescope (GMRT). On July 16, 2009, we detected a 3ŌÉ emission whose light curve is...
  • Tau Ceti's planets nearest around single, Sun-like star

    12/19/2012 6:30:24 AM PST · by Red Badger · 33 replies
    BBC ^ | 19 December 2012 Last updated at 00:32 ET | Staff
    The nearest single Sun-like star to the Earth hosts five planets - one of which is in the "habitable zone" where liquid water can exist, astronomers say. Tau Ceti's planetary quintet - reported in an online paper that will appear in Astronomy and Astrophysics - was found in existing planet-hunting data. The study's refined methods of sifting through data should help find even more far-flung worlds. The star now joins Alpha Centauri as a nearby star known to host planets. In both those cases, the planets were found not by spying them through a telescope but rather by measuring the...
  • NASA's Kepler Mission Confirms Its First Planet in Habitable Zone of Sun-like Star

    12/05/2011 10:46:16 AM PST · by Dallas59 · 45 replies
    NASA ^ | 12/5/2011 | NASA
    NASA's Kepler mission has confirmed its first planet in the "habitable zone," the region where liquid water could exist on a planetís surface. Kepler also has discovered more than 1,000 new planet candidates, nearly doubling its previously known count. Ten of these candidates are near-Earth-size and orbit in the habitable zone of their host star. Candidates require follow-up observations to verify they are actual planets. The newly confirmed planet, Kepler-22b, is the smallest yet found to orbit in the middle of the habitable zone of a star similar to our sun. The planet is about 2.4 times the radius...
  • NASA Spacecraft Discovers Planet Orbiting 2 Suns, Just Like Star Wars

    09/16/2011 9:18:07 AM PDT · by Ernest_at_the_Beach · 24 replies
    CBS ^ | September 15, 2011 6:24 PM | Matt Bigler
    >Ames Research Center, Circumbinary Planet, Matt Bigler, Mountain View, NASA, NASA Ames, Star Wars, Tatooine, Two Suns MOUNTAIN VIEW (CBS SF) Ė The National Aeronautics and Space Administrationís Kepler spacecraft has found a planet that orbits two stars just as Luke Skywalkerís home world does in the Star Wars movies, NASA announced Thursday.An orange sun and a red sun that actually orbit each other define daytime on Kepler 16b, the 21st planet outside our own solar system discovered by† planet hunter.KCBSí Matt Bigler Reports: NASA Discovery Sure To Excite Star Wars Fans The resemblance between the newest exo-planet and the...
  • Prepare for the Lord's Return! 5 Days in Heaven and Hell

    02/28/2011 10:25:53 AM PST · by Quix · 384 replies · 2+ views
    QUIX: SHORT EXCERPTS ARE OFFERED IN A SORT OF EXECUTIVE SUMMARY FIRST--THEN THE ENTIRE NARRATIVE AS AVAILABLE AT SPIRITLESSONS.COM I found this to be another anointed, Biblical narrative about a very convincing Heavenly visitation--actually, as usual, to hell, too. There's an item or 3 in this one to potentially trouble the RC's and Maryolators, . . . as well as some potentially troubling things for some Calvinists, however. Read at your own risk. Those exposed to The Truth are responsible before God for what they do about and with The Truth.On the other hand, ignorance affords no eternal protection....
  • 2011 preview: Expect Earth's Twin Planet

    12/21/2010 3:23:40 PM PST · by Dallas59 · 29 replies · 1+ views
    New Scientist ^ | 12/21/2010 | New Scientist
    In 2010, one new exoplanet appeared every four days or so; by the end of the year, the total topped 500. But in September, a truly exceptional find punctuated this steady drumbeat of discovery: the first alien planet that could host life on its surface. Gliese 581 g, spotted by a team led by Steven Vogt of the University of California, Santa Cruz, inhabits a "Goldilocks" zone around its host star, a band just warm enough to boast liquid water. At 3.1 to 4.3 times the mass of Earth, it is also small enough that it should be made...
  • Odds of Life on Nearby Planet '100 Percent,' Astronomer Says

    09/30/2010 4:04:03 PM PDT · by Dallas59 · 92 replies
    Fox News ^ | 9/30/2010 | Fox News
    An Earth-size planet has been spotted orbiting a nearby star at a distance that would makes it not too hot and not too cold -- comfortable enough for life to exist, researchers announced Wednesday. If confirmed, the exoplanet, named Gliese 581g, would be the first Earth-like world found residing in a star's habitable zone -- a region where a planet's temperature could sustain liquid water on its surface.[Illustration of planet Gliese 581g.] And the planet's discoverers are optimistic about the prospects for finding life there. "Personally, given the ubiquity and propensity of life to flourish wherever it can, I...
  • Newly Discovered Planet May be First Truly Habitable Exoplanet

    09/29/2010 9:09:27 PM PDT · by Dallas59 · 44 replies
    Santa Clara U. ^ | 9/29/2010 | Tim Stephens
    A team of planet hunters led by astronomers at the University of California, Santa Cruz, and the Carnegie Institution of Washington has announced the discovery of an Earth-sized planet (three times the mass of Earth) orbiting a nearby star at a distance that places it squarely in the middle of the star's "habitable zone," where liquid water could exist on the planet's surface. If confirmed, this would be the most Earth-like exoplanet yet discovered and the first strong case for a potentially habitable one. To astronomers, a "potentially habitable" planet is one that could sustain life, not necessarily one...
  • How We Found Hundreds of Earth-Like Planets-Video (Several Hundred Have Been Found)

    07/23/2010 12:36:35 AM PDT · by Dallas59 · 28 replies · 1+ views
    TED ^ | 7/25/2010 | TED
    Astronomer Dimitar Sasselov and his colleagues search for Earth-like planets that may, someday, help us answer centuries-old questions about the origin and existence of biological life elsewhere (and on Earth). How many such planets have they found already? Several hundreds.
  • New Worlds to Explore? Kepler Spacecraft Finds 750 Exoplanet Candidates

    06/18/2010 11:47:21 AM PDT · by Dallas59 · 15 replies · 308+ views
    Universe Today ^ | 6/15/2010 | Nancy Atkinson
    The Kepler spacecraft has found over 750 candidates for extrasolar planets, and that is just from data collected in the first 43 days of the spacecraft's observations. "This is the biggest release of candidate planets that has ever happened," said William Borucki, Kepler's lead scientist. "The number of candidate planets is actually greater than all the planets that have been discovered in the last 15 years." This is an astounding amount of potential exoplanets from data taken during such a short period of time, however Borucki added that they expect only about 50% of these candidates to actually turn...
  • Finding Earth's Twin: No Easy Task

    03/02/2010 5:29:57 PM PST · by KevinDavis · 15 replies · 286+ views
    Astrobiology Magazine ^ | 03/02/10 | Henry Bortman
    Does our galaxy contain twins of Earth: rocky planets, orbiting sun-like stars at comfortable distances, capable of supporting life? That is the million-dollar question for exoplanet hunters. NASA is about to launch an orbiting telescope designed to find an answer. Its name is Kepler. Kepler, scheduled for launch on March 6, 2009, will observe a field of 100,000 stars in the Cygnus-Lyra region of the sky, searching for planets by looking for their transits. A transit occurs when a planet passes in front of the star it orbits, causing the starís brightness to dim temporarily. The amount of dimming that...
  • Cannibal star is eating a planet, astronomers say

    02/24/2010 4:12:41 PM PST · by rdl6989 · 14 replies · 482+ views
    telegraph.co.uk ^ | Feb 24, 2010
    A star 600 light years from Earth is slowly devouring one of its own planets, according to a study released on Wednesday. The planet, the discovery of which was reported last year, is a "gas giant" with a mass about 40 per cent greater than that of Jupiter, the biggest planet of our Solar System, and with a radius 79 per cent bigger. But whereas Jupiter takes nearly 12 years to plod around the Sun, it takes WASP-12b a mere 26 hours to race around its star, WASP-12, located in the constellation of Auriga.
  • We will find 'twins of Earth' this year, says astronomer Michel Mayor

    01/25/2010 7:13:50 PM PST · by KevinDavis · 18 replies · 515+ views
    Times Online ^ | 01/25/10 | Hannah Devlin
    Scientists will have detected the first truly Earth-like planet outside the solar system by the end of the year, one of the worldís leading astronomers predicted yesterday
  • Sun Glints Seen from Space Signal Oceans and Lakes

    01/11/2010 7:05:29 PM PST · by KevinDavis · 10 replies · 525+ views
    NASA ^ | 01/05/10
    In two new videos from NASAís Deep Impact spacecraft, bright flashes of light known as sun glints act as beacons signaling large bodies of water on Earth. These observations give scientists a way to pick out planets beyond our solar system (extrasolar planets) that are likely to have expanses of liquid, and so stand a better chance of having life. These sun glints are like sunshine glancing off the hood of a car. We can see them reflecting off a smooth surface when we are positioned in just the right way with respect to the sun and the smooth surface....
  • Kepler Planet-Hunting Mission Finds 5 New Lightweight Worlds

    01/04/2010 4:34:21 PM PST · by KevinDavis · 22 replies · 869+ views
    Space.com ^ | 01/04/10 | Andrea Thompson
    WASHINGTON ó The list of known exoplanets in the galaxy just got bigger, thanks to the first observations of NASA's Kepler space telescope, which found five new lightweight worlds orbiting distant stars. "I would like to announce today the discovery of five exoplanets by Kepler," said Kepler science director William Borucki of NASA's Ames Research Center in Moffett Field, Calif., here today at the 215th meeting of the American Astronomical Society.
  • Astronomers Add at Least 4 New Low-Mass Planets to Their Posse

    12/15/2009 6:40:11 AM PST · by Dallas59 · 2 replies · 285+ views
    Discover ^ | 12/14/2009 | Discover
    Astronomers announced today the discovery of at least four ó and as many as six ó planets orbiting two nearby stars. These planets are relatively low mass, ranging from 5 to 25 times the mass of the Earth. For comparison, Jupiter is over 300 times more massive than the Earth, and Uranus 15 times our mass. Three of these extrasolar planets orbit the nearby star 61 Virginis, which is only about 28 light years away (thatís a stoneís throw in galactic terms). 61 Vir has been a target for planet hunters for some time because itís very much like our...
  • Lots More Planets Found Outside Solar System (32 More Planets, Total 400)

    10/19/2009 7:11:29 AM PDT · by Dallas59 · 40 replies · 1,685+ views
    Yahoo News ^ | Yahoo News
    <p>WASHINGTON Ė Astronomers have found 32 new planets outside our solar system, adding evidence to the theory that the universe has many places where life could develop.</p> <p>Scientists using European Southern Observatory telescopes didn't find any planets quite the size of Earth or any that seemed habitable or even unusual. But their announcement increased the number of planets discovered outside the solar system to more than 400.</p>
  • "Significant Discovery" in Exoplanet Research

    10/15/2009 5:30:45 PM PDT · by KevinDavis · 9 replies · 679+ views
    Space Coalition Blog ^ | 10/15/09 | Leonard David
    Stand by for yet another "significant discovery" in the field of exoplanets. That's the word that will come out next week from an international gathering of exoplanet experts during a conference in Porto, Portugal. The new finding makes use of the European Southern Observatory's (ESO) High Accuracy Radial Velocity Planet Searcher. Called HARPS for short, this device is a spectrograph for use with ESO's 3.6-meter telescope. B The noteworthy revelation is to be announced on Monday, October 19. Detailing the finding will be Stephane Udry of the Geneva Observatory in Switzerland, Xavier Bonfils of the Laboratoire d'Astrophysique de Grenoble in...
  • First Solid Evidence for a Rocky Exoplanet

    09/20/2009 2:53:01 PM PDT · by Dallas59 · 9 replies · 634+ views
    Mass and density of smallest exoplanet finally measured The longest set of HARPS measurements ever made has firmly established the nature of the smallest and fastest-orbiting exoplanet known, CoRoT-7b, revealing its mass as five times that of Earth's. Combined with CoRoT-7b's known radius, which is less than twice that of our terrestrial home, this tells us that the exoplanet's density is quite similar to the Earth's, suggesting a solid, rocky world. The extensive dataset also reveals the presence of another so-called super-Earth in this alien solar system. "This is science at its thrilling and amazing best," says Didier Queloz,...
  • Baby Stars Found in Galactic Center

    06/14/2009 6:24:19 PM PDT · by NormsRevenge · 4 replies · 368+ views
    Space.com on Yahoo ^ | 6/13/09 | Andrea Thompson
    PASADENA, CALIF. ó Baby stars have at last been found in the harsh environment at the center of the Milky Way, astronomers said here this week at the 214th meeting of the American Astronomical Society. These are "stars that have just ignited their core and they are just starting to produce light. So it is a very early phase in the star formation process," said team member Solange Ramirez of NASA's Exoplanet Science Institute at Caltech. The heart of our galaxy is an extreme environment, with fierce stellar winds, shock waves and a core supermassive black hole all packed into...
  • Scientists discover a nearly Earth-sized planet (smallest exoplanet ever, called Gliese 581 e)

    04/21/2009 11:23:19 AM PDT · by NormsRevenge · 16 replies · 897+ views
    AP on Yahoo ^ | 4/21/09 | Jennifer Quinn and Seth Borenstein - AP
    HATFIELD, England Ė In the search for Earth-like planets, astronomers zeroed in Tuesday on two places that look awfully familiar to home. One is close to the right size. The other is in the right place. European researchers said they not only found the smallest exoplanet ever, called Gliese 581 e, but realized that a neighboring planet discovered earlier, Gliese 581 d, was in the prime habitable zone for potential life. ... An American expert called the discovery of the tiny planet "extraordinary."
  • Galaxy has 'billions of Earths

    02/15/2009 7:53:31 PM PST · by Bringbackthedraft · 89 replies · 1,848+ views
    BBC ^ | 15 February 2009 | NS
    There could be one hundred billion Earth-like planets in our galaxy, a US conference has heard.
  • Nearest Star System Might Harbor Earth Twin

    03/07/2008 2:28:00 PM PST · by jmcenanly · 23 replies · 372+ views
    Space.com ^ | 07 March 2008 | Andrea Thompson
    Earth may have a twin orbiting one of our nearest stellar neighbors, a new study suggests. University of California, Santa Cruz graduate student Javiera Guedes used computer simulations of planet formation to show that terrestrial planets are likely to have formed around one of the stars in the Alpha Centauri star system, our closest stellar neighbors. Guedes' model showed planets forming around the star Alpha Centauri B (its sister star, Proxima Centauri, is actually our nearest neighbor) in what is called the "habitable zone," or the region around a star where liquid water can exist on a planet's surface. The...
  • Planet of Promise: Small, Rocky World Could Harbor Life

    05/17/2007 7:49:21 PM PDT · by KevinDavis · 16 replies · 394+ views
    space.com ^ | 05/17/07 | Seth Shostak
    For the first time, astronomers have discovered a planet far, far away that might be similar to Earth. This distant world, which pirouettes around a dim bulb of a star with the unglamorous name Gliese 581, may possibly sport a landscape that would be vaguely familiar to us - a panorama of liquid oceans and drifting continents. If so, there's the chance that it's a home to life - perhaps even advanced life. It's been a dozen years since the first planet around a star other than the Sun was uncovered. Since then, small teams of astronomers have been flushing...
  • Exoplanet Discovery

    They don't have the transcript up yet, but the audio file is available for those interested.
  • New 'super-Earth' found in space [planet found]

    04/25/2007 3:07:03 AM PDT · by FostersExport · 68 replies · 3,055+ views
    BBC News ^ | Wednesday, 25 April 2007 | BBC News
    Astronomers have found the most Earth-like planet outside our Solar System to date, a world which could have water running on its surface. The planet orbits the faint star Gliese 581, which is 20.5 light-years away in the constellation Libra. Scientists made the discovery using the Eso 3.6m Telescope in Chile. They say the benign temperatures on the planet mean any water there could exist in liquid form, and this raises the chances it could also harbour life. "We have estimated that the mean temperature of this 'super-Earth' lies between 0 and 40 degrees Celsius, and water would thus be...
  • First habitable Earth like planet outside Solar System discovered

    04/24/2007 1:41:01 PM PDT · by Sopater · 190 replies · 5,989+ views
    Zeenews.com ^ | April 24, 2007
    Munich, April 24: An international team of astronomers from Switzerland, France and Portugal have discovered the most Earth-like planet outside our Solar System to date. The planet has a radius only 50 percent larger than Earth and is very likely to contain liquid water on its surface. The research team used the European Southern Observatoryís (ESOís) 3.6-m telescope to discover the super-Earth, which has a mass about five times that of the Earth and orbits a red dwarf already known to harbour a Neptune-mass planet. Astronomers believe there is a strong possibility in the presence of a third planet with...
  • Optical Device Cancels Starlight So Astronomers Can See Distant Planets

    03/01/2006 4:07:08 PM PST · by KevinDavis · 5 replies · 407+ views
    University of Arizona ^ | 02/28/06 | Lori Stiles
    "Some people say that I study darkness, not optics," jokes Grover Swartzlander. But it's a kind of darkness that will allow astronomers to see the light. Swartzlander, an associate professor in The University of Arizona College of Optical Sciences, is developing devices that block out dazzling starlight, allowing astronomers to study planets in nearby solar systems.
  • Prof wins NASA grant to study planetary system

    03/01/2006 4:04:23 PM PST · by KevinDavis · 2 replies · 204+ views
    8:48 a.m., Feb. 28, 2006--A University of Delaware scientist has received a three-year, $241,000 grant from the National Aeronautic and Space Administration (NASA) to study a developing planetary system about 180 light-years from Earth. John E. Gizis, UD assistant professor of physics and astronomy, was awarded the grant through NASA's Origins of Solar Systems program, which supports scientific investigations related to understanding the formation and early evolution of planetary systems, and to provide the fundamental research and analysis necessary to detect and characterize other planetary systems. The research also supports NASA's Vision for Space Exploration program, a long-term plan to...
  • TSU helps discover new planet

    03/01/2006 4:00:28 PM PST · by KevinDavis · 3 replies · 206+ views
    The Meter ^ | 02/27/06 | Cara Anthony
    In January, the American Astronomical Society announced in Washington, D.C. that Gregory W. Henry, a TSU astronomer who was part of a 21-member international research team, aided in the discovery of a new planet. Henry said TSUís involvement in the discovery of the planet and astronomical studies began with Michael Busbyís, director of Center of Excellence, vision for TSU to have an astronomy research program. ďWe have only scratched the surface,Ē Henry said. ďPeople have wondered for years if other worlds exist.Ē
  • ET: The Exoplanet Tracker

    01/14/2006 8:44:25 AM PST · by KevinDavis · 2 replies · 329+ views
    spacedaily.com ^ | 01/13/06
    Astronomers have discovered a planet orbiting a very young star nearly 100 light years away using a relatively small, publicly accessible telescope turbocharged with a new planet-finding instrument. The feat suggests that astronomers have found a way to dramatically accelerate the pace of the hunt for planets outside our solar system. "In the last two decades, astronomers have searched about 3,000 stars for new planets," said Jian Ge, a professor of astronomy at the University of Florida. "Our success with this new instrument shows that we will soon be able to search stars much more quickly and cheaply - perhaps...
  • "First Exoplanet" Image Confirmed

    05/07/2005 6:12:52 AM PDT · by Lonesome in Massachussets · 16 replies · 635+ views
    Sky & Telescope ^ | May 2, 2005 | Robert Naeye
    † SkyandTelescope.com † "First Exoplanet" Image ConfirmedBy Robert Naeye This infrared image resolves 2M 1207 into a close pair of objects, one of them 100 times brighter than the other. Astronomers infer that their masses are 25 and 5 Jupiter masses, which would make them a brown dwarf and a planet, respectively. Both are glowing with heat left over form their formation. The image was taken with adaptive optics on one of the 8.2-meter VLT reflectors. The objects are separated by 0.78 arcsecond, which corresponds to about 55 astronomical units at the system's 230-light-year distance.†Courtesy Gael Chauvin / ESO....
  • 30 Billion Earths? New Estimate of Exoplanets in Our Galaxy

    05/28/2002 5:33:19 PM PDT · by vannrox · 6 replies · 567+ views
    Space.COM ^ | 29 January 2002 | By Robert Roy Britt
    By Robert Roy Britt Senior Science Writer posted: 07:00 am ET 29 January 2002 Chances are you haven't spent a whole lot of time wondering how many Jupiter-like planets exist in our galaxy. But Charley Lineweaver has, because it bears on a more important question: How many potentially habitable planets are there? New calculations by Lineweaver and Daniel Grether, both of the University of New South Wales in Australia, provide an encouraging answer to this question. The researchers expect a flood of Jupiters will be found, perhaps 50 percent more than currently expected. Each such discovery would be significant...