| Extrasolar planet (76) |  |
#Exoplanets: New missions hunting for alien worlds As mountains go, Cerro Armazones may not be much to look at.
or exoplanets, with astonishing speed. We now have identified nearly a thousand. Most are much bigger than Earth
Kepler-62e, Gliese-581g and Kepler 22b, to name but a few.""The quest for Earthlike exoplanets, and ultimately life on such planets, is one of the great frontiers of science, perhaps the last big piece in the puzzle of how we, humans,
fit into the big picture,#says Liske, who works at the European Southern Observatory, an organisation that already operates a number of telescopes in the Chilean desert.
greatly outlived its original two-and-a-half year mission of spotting terrestrial-sized exoplanets,
Kepler has helped spot thousands of potential exoplanets#over 130 of which have been confirmed #but two of its four reaction wheels that control the telescope's direction have failed in recent months,
but this month Nasa conceded that Kepler will no longer be able to search for exoplanets.
which Liske says"will completely revolutionise the exoplanet field.##Size mattersto be considered a"habitable#world,
"With the E-ELT, we believe that we will be able to directly see exoplanets similar to Earth out to a distance of about 20 light years,
it spotted the first exoplanet to be observed directly, 2m1207b, approximately 170 light-years from Earth in the constellation Centaurus.
But while GPI and Sphere will make it possible to spot exoplanets of similar size to Jupiter#even these will still be too big to be considered habitable.
E-ELT, GMT and TMT will all be equipped with tools for exoplanet search, and are expected to be able to peer so deep into the universe
'If we're lucky we may be able to say something about the exoplanet's surface:
most exoplanets are still found using indirect techniques#such as detecting a wobble in the position of the star that indicates it is being pulled slightly towards an orbiting planet,
but has also been used to learn more about known exoplanets. It determined that an exoplanet discovered by Corot in September 2009 some 500 light-years away
and dubbed Corot-7b had a rocky surface and a mass only five times of our Earth.
Tess, the Transiting Exoplanet Survey Satellite. Due to launch in 2017, when Tess finds a potentially habitable planet,
#Exoplanet weather forecast calls for clouds University of Chicago rightoriginal Studyposted by Steve Koppes-Chicago on December 31 2013a team of scientists report they have characterized definitively the atmosphere of a super-Earth class
which is known as GJ1214B is classified as a super-Earth type planet because its mass is intermediate between those of Earth and Neptune.
This was the largest Hubble program ever devoted to studying a single exoplanet. An artist s rendering of extrasolar planet GJ 1214b.
Credit: NASA ESA and G. Bacon (STSCL) via U. Chicago) The researchers describe their work as an important milestone on the road to identifying potentially habitable Earthlike planets beyond our Solar system.
#Signs of water detected in exoplanet s debris University of Warwick rightoriginal Studyposted by Anna Blackaby-Warwick on October 11 2013the remains of a water-rich rocky exoplanet have been discovered outside
To date observations of 12 destroyed exoplanets orbiting white dwarves have been carried out but this is the first time the signature of water has been found.
#Moon-size exoplanet circling sun-like star smallest yet A newfound world called Kepler 37 b could easily blend in to the long and growing list of known extrasolar planets,
But the new addition to the catalogue of 800-plus exoplanets stands out in at least one major respect#it is far smaller than any planet yet discovered outside of our solar system.
The exoplanet that previously held the record on the tiny end of the size spectrum#a Mars-size object known as Kepler 42 d#is nearly twice the diameter of Kepler 37 b. The newfound body is just 80 percent
and orbital properties of exoplanets but is usually unable to pinpoint their masses.)All three of the exoplanets found by Barclay and his colleagues,
in fact, will rank among the smallest known: Kepler 37 c is 74 percent the diameter of Earth,
smaller exoplanet discoveries have proved difficult to confirm with observations other than Kepler s . So researchers have turned to statistical arguments
In the end, based on population estimates of exoplanets binary stars and other astronomical objects, the researchers calculated the probability that the signal collected from Kepler represents a true planet."
Like our exoplanet search and using rovers to look for microbes on Mars this search for extraterrestrial life is driving useful science.
These exoplanets are rocky like Earth but are rich in carbon rather than silica and may contain large layers of diamond.
The discovery was announced the same week that other scientists sounded a note of caution on exoplanet finds.
Beaulieu also expressed confidence in the frozen exoplanet discovery: In the case of the planet announced by Gould's team stellar variability could not mimic the observed signal.
Twice the size of Earth and with 17 times our planet's mass Kepler-10c is so unusual that it has been placed in a brand new class of exoplanet.
because it is too heavy to fit into the super-Earth class of exoplanets which are bigger than our home world but much lighter than Neptune.
This will in turn help exoplanet hunters figure out which distant worlds are capable of hosting atmospheres that might support life.
The results may add a new twist to the search for exoplanets that can support life says Schneider.
and key parts of its steering system are broken now ending the telescope's main mission as an exoplanet hunter.
Still the flicker method could be put to use on NASA's next planet hunter the Transiting Exoplanet Survey Satellite (TESS) due to launch in 2017.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
while others are attacking more abstract ones like determining the weather on distant exoplanets. The common thread between them is brilliance of course but also impact.
and that the thirst-quenching#life-supporting substance may be common on exoplanets throughout the galaxy x
Tao likens the process to techniques used to discover exoplanets--new planets beyond our solar system.
evidence of their presence can be inferred from fluctuations in starlight due to gravitational effects caused by the unseen exoplanets.
#Astronomers discover'young Jupiter'exoplanet The first planet detected by the Gemini Planet Imager (GPI) from an international team of astronomers,
The exoplanet is being called a young Jupiter by the researchers because it shares many characteristics of Jupiter.
The bright central star has been removed mostly to enable the detection of the exoplanet one million times fainter.
They are both members of the international Gemini Planet Imager Exoplanet Survey (GPIES) team which is dedicated to imaging and characterising exoplanets, planets discovered outside of earths solar system.
The new planet is called 51 Eridani b. The GPI is a new astronomy instrument operated by an international collaboration headed by Bruce Macintosh, a Professor of Physics in the Kavli Institute at Stanford.
The exoplanet is the'faintest'one on record, and also shows the strongest methane signature ever detected on an alien planet,
who led the WISE study and whose previous work identifying recycled planetary dust, known as debris disks, around close to a hundred other star systems, puts the discovery of the exoplanet in context.
Previous Jupiter-like exoplanets have shown only faint traces of methane, far different from the heavy methane atmospheres of the gas giants in our solar system.
"All of the exoplanets astronomers have imaged before have atmospheres that look like stars very cool stars, but still stars,"says Macintosh,
unlike most exoplanets where carbon has mostly been found in the form of carbon monoxide. Since the atmosphere of 51 Eridani is also methane rich,
Once theye there, they can do serious science, from climate modelling to exoplanet hunting. But they are stuck also in that orbit for their entire working lives.
his team has provided the astronomers with geometric phase holograms that they have used build advanced coronagraphs--telescopes that can see things close to stars--to study exoplanets beyond our solar system."
#Exoplanet 51 Eridani b: A Red-hot Young Jupiter Around Distant Star (Infographic) Astronomers have photographed directly a planet not unlike Jupiter orbiting 51 Eridani, a sunlike star 96 light-years from Earth.
The Gemini Planet Imager is designed an instrument specifically for directly imaging exoplanets around distant stars s
The discovery also has implications for studying extrasolar planets. The aurora the scientists observed from LSR J1835+3259 appears powered by a little-understood dynamo process similar to that seen on larger planets in our Solar system.
but thousands of times more powerful, Hallinan said. his suggests that it may be possible to detect this type of activity from extrasolar planets,
. If they succeed their first-of-its-kind demonstration of this new technology will be used for finding Earthlike exoplanets orbiting distant stars.
Astronomers have identified more than 1700 exoplanets some as far as hundreds of light years away. Most were discovered by the traditional transit method
whether distant exoplanets they discover are rocky worlds like Earth or less dense gas giants like Jupiter.
Better Precision with a Laserthe radial velocity method works by measuring how exoplanet gravity changes the light emitted from its star.
As exoplanets circle a star their gravitation tugs at the star changing the speed with
--which is better for finding exoplanets. The stars we look at are brightest in the green visible range
The Harvard-Smithsonian team is installing this device on the High-Accuracy Radial Velocity Planet Searcher-North (HARPS-N) a new spectrograph designed to search for exoplanets using the Italian National Telescope.
We will look at the thousands of potential exoplanets identified by the Kepler satellite telescope by the transit method.
such as the transit of exoplanets across other stars, binary stars that eclipse, gamma ray bursts and so on. Capturing the changes associated with these events requires a much more rapid way of photographing the entire sky.
Law and co say their Evryscope should be able to search for exoplanets around nearby bright stars
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