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Latest HD 209458 b Stories

gas giant planet HD 209458b
2014-07-24 07:35:40

J.D. Harrington, NASA Headquarters, Washington Astronomers using NASA's Hubble Space Telescope have gone looking for water vapor in the atmospheres of three planets orbiting stars similar to the sun -- and have come up nearly dry. The three planets, known as HD 189733b, HD 209458b, and WASP-12b, are between 60 and 900 light-years away from Earth and were thought to be ideal candidates for detecting water vapor in their atmospheres because of their high temperatures where water turns...

New Hubble Data Offer More Details About Cloudy Alien World
2013-12-31 11:53:25

[ Watch the Video: New Secrets Revealed About Cloudy Exoplanet ] Lee Rannals for redOrbit.com - Your Universe Online Scientists using data collected by the Hubble Space Telescope have discovered new cloudy details about an alien world. The team said that GJ1214b is a super-Earth class planet because its mass is intermediate between Earth and Neptune. The group of scientists analyzed the characteristics of the exoplanet and published their results in the journal Nature. Previous...

2013-12-03 23:02:08

A census of planets outside our solar system pierces the haze surrounding five "hot Jupiters" to find conclusive signs of atmospheric water. College Park, Md (PRWEB) December 03, 2013 Using the powerful eye of NASA's Hubble Space Telescope, two teams of scientists have found faint signatures of water in the atmospheres of five distant planets. The presence of atmospheric water was reported previously on a few exoplanets – planets orbiting stars beyond our solar system....

Five Alien Worlds With Water Detected By Hubble Space Telescope
2013-12-03 14:19:52

[ Watch the Video: Water That's Out Of This World Detected By Hubble ] Lee Rannals for redOrbit.com - Your Universe Online NASA said its Hubble Space Telescope has detected subtle traces of water in the atmospheres of five distant alien worlds. Two teams of scientists have discovered faint signatures of water in the atmospheres of five exoplanets. This is the first study to conclusively measure and compare the profiles and intensities of these signatures on multiple worlds. "We're...

Light Sunny Super Earth Discovered
2013-06-12 13:29:54

Lee Rannals for redOrbit.com - Your Universe Online Researchers writing in the Astrophysical Journal say they have discovered one very light and sunny super-Earth. Dubbed GJ3470b, the team says the planet is about 14 times the mass of our own planet but is the second lightest of the existing exoplanets that have already been surveyed. Their data revealed that this planet is most likely not covered by thick clouds but is a place where sunscreen would be a necessity. GJ3470b orbits its...

KELT Discovers Metal-poor Cousin Of Famous Planet
2013-06-05 13:43:05

University of Louisville A scientific team led by University of Louisville doctoral student Karen Collins has discovered a hot Saturn-like planet in another solar system 700 light-years away. Collins announced the discovery of exoplanet KELT-6b Tuesday, June 4, during the American Astronomical Society's national meeting in Indianapolis. Astronomers caught sight of the planet when it passed in front of, or "transited," its host star–and they've since discovered that the planet...

Low-Budget Ground Telescope Pinpoints Gas Giant Exoplanet
2013-06-04 13:45:19

Lee Rannals for redOrbit.com — Your Universe Online Scientists announced during the American Astronomical Society´s (AAS) national meeting in Indianapolis this week that they have discovered a hot Saturn-like planet in another solar system 700 light-years away. The team used an inexpensive ground-based telescope to discover KELT-6b, which resides in the constellation Coma Berenices near Leo. This exoplanet has an orbit that transits its star every 7.8 days. Because of the...

Exoplanet May Have Formed Through Core Accretion
2013-03-15 05:33:23

April Flowers for redOrbit.com - Your Universe Online An international team of astronomers has made the most detailed examination to date of the atmosphere around a Jupiter-like exoplanet using the Keck Observatory, one of the two largest optical telescopes in the world. The young exoplanet, orbiting the star HR 8799, has water and carbon monoxide in its atmosphere. It does not, however, have methane, suggesting that a particular planet-forming mechanism, known as core accretion, brought...

Exoplanet Gets Partially Evaporated By Host Star
2012-06-28 14:21:08

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have observed one planet in another solar system, similar to Jupiter, giving off a powerful burst of evaporation after passing by its parent star. Using the Hubble Space Telescope, astronomers saw exoplanet HD 189733b bathe in an intense X-ray radiation after its parent star gave off a violet flare. The team observed the planet with Hubble during early 2010 and late 2011, during which HD 189733b was silhouetting its...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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