ScienceDaily: Extrasolar Planets News |
- Alien life search: Spotting atmospheric chemistry of alien worlds devoid of life
- 'Hot Jupiters' provoke their own host suns to wobble
- Astronomers pinpoint 'Venus Zone' around stars
| Alien life search: Spotting atmospheric chemistry of alien worlds devoid of life Posted: 11 Sep 2014 03:07 PM PDT Astronomers searching the atmospheres of alien worlds for gases that might be produced by life can't rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced non-biologically, according to extensive simulations. Researchers have carefully simulated the atmospheric chemistry of alien worlds devoid of life thousands of times over a period of more than four years, varying the atmospheric compositions and star types. |
| 'Hot Jupiters' provoke their own host suns to wobble Posted: 11 Sep 2014 10:54 AM PDT Blame the 'hot Jupiters.' These large, gaseous exoplanets can make their suns wobble when they wend their way through their own solar systems to snuggle up against their suns, according to new research. |
| Astronomers pinpoint 'Venus Zone' around stars Posted: 10 Sep 2014 06:41 PM PDT Astronomers have defined the 'Venus Zone,' the area around a star in which a planet is likely to exhibit the unlivable conditions found on the planet Venus. The research will aid Kepler astronomers searching for exoplanets, helping them determine which are likely to be similar to Earth and which are more likely to resemble Venus. |
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