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Latest Hot Jupiters Stories

2009-05-28 14:28:51

The U.S. space agency says a new planet-hunting technique has recorded its first discovery -- a Jupiter-like planet orbiting one of the smallest stars known. The National Aeronautics and Space Administration said the technique, called astrometry, involves measuring the motions of a star as an unseen planet tugs the star back and forth. However, the method had failed to identify any exoplanets. But now two astronomers from NASA's Jet Propulsion Laboratory using the technique have identified a...

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2009-04-21 10:08:41

A team of astronomers from University College London (UCL), including undergraduate students, have discovered that an exotic world passes directly in front of the Sun-like star it orbits, revealing for the first time that it is about the same size as Jupiter. And rather than traveling to one of the major observatories in Hawaii or Chile, the students made the discovery with a telescope at UCL's University of London Observatory (ULO) in the capital's northern suburb of Mill Hill. The work was...

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2009-02-03 09:35:00

The CoRoT satellite has discovered a planet only twice as large as the Earth orbiting a star slightly smaller than the Sun. It is the smallest extrasolar planet (planet outside our solar system) whose radius has ever been measured. The planet's composition is not yet certain, but it is probably made predominantly of rock and water. It orbits its host star in 20 hours, which is the shortest orbital period of all exoplanets found so far. Astronomers infer its temperature must be so high (over...

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2009-01-28 14:15:00

Astronomers have discovered a planet that goes through phases of intense global warming within a matter of hours. Researchers used infrared sensors aboard NASA's Spitzer Space Telescope to gauge the temperature of the planet, known as HD8606b. "We can't get a direct image of the planet, but we can deduce what it would look like if you were there. The ability to go beyond an artist's interpretation and do realistic simulations of what you would actually see is very exciting," said Gregory...

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2009-01-14 15:50:41

Two independent groups have simultaneously made the first-ever ground-based detection of extrasolar planets thermal emissions. Until now, virtually everything known about atmospheres of planets orbiting other stars in the Milky Way has come from space-based observations. These new results, accepted for publication in Astronomy & Astrophysics, open a new frontier to studying these alien worlds and are especially critical because the major space-based workhorse to these studies, the Spitzer...

2008-12-10 14:36:29

The U.S. space agency says its Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. The National Aeronautics and Space Administration said the discovery is an important step toward finding chemical biotracers of extraterrestrial life. Although the extrasolar, Jupiter-sized planet called HD 189733b is too hot for life, NASA said the Hubble observations are a proof-of-concept demonstration that the basic chemistry for life can be measured on...

2008-12-09 12:56:00

WASHINGTON, Dec. 9 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This breakthrough is an important step toward finding chemical biotracers of extraterrestrial life. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The Jupiter-sized planet, called HD 189733b, is too hot for life. But the Hubble observations are a proof-of-concept demonstration that the basic chemistry for life can be...

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2008-12-09 14:15:00

NASA's Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This is an important step along the trail of finding the chemical biotracers of extraterrestrial life as we know it. The Jupiter-sized planet, called HD 189733b, is too hot for life. But the Hubble observations are a proof-of-concept demonstration that the basic chemistry for life can be measured on planets orbiting other stars. Organic compounds can also be a by-product of life...

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2008-12-04 08:00:00

Three undergraduate students, from Leiden University in the Netherlands, have discovered an extrasolar planet. The extraordinary find, which turned up during their research project, is about five times as massive as Jupiter. This is also the first planet discovered orbiting a fast-rotating hot star.The students were testing a method of investigating the light fluctuations of thousands of stars in the OGLE database in an automated way. The brightness of one of the stars was found to decrease...

2008-11-24 17:19:17

A new planet closely orbiting a red giant star was found by a team of astronomers from Penn State University and Nicolaus Copernicus University. The research sheds light on ways in which aging stars can influence nearby planets, Penn State said in a news release. The discovered planet has a mass about six times that of Jupiter, the largest planet in the solar system that includes Earth, said Alexander Wolszczan from Penn State and Andrzej Niedzielski of Nicolaus Copernicus University. Team...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.