ScienceDaily: Astronomy News |
- First potentially habitable Earth-sized planet confirmed by Gemini and Keck observatories
- A cross-section of the universe
- Mars: Meteorites yield clues to Red Planet's early atmosphere
| First potentially habitable Earth-sized planet confirmed by Gemini and Keck observatories Posted: 17 Apr 2014 11:19 AM PDT The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed by observations with both the W. M. Keck Observatory and the Gemini Observatory. The initial discovery, made by NASA's Kepler Space Telescope, is one of a handful of smaller planets found by Kepler and verified using large ground-based telescopes. It also confirms that Earth-sized planets do exist in the habitable zone of other stars. |
| A cross-section of the universe Posted: 17 Apr 2014 09:44 AM PDT An image of a galaxy cluster gives a remarkable cross-section of the universe, showing objects at different distances and stages in cosmic history. They range from cosmic near neighbors to objects seen in the early years of the universe. The 14-hour exposure shows objects around a billion times fainter than can be seen with the naked eye. |
| Mars: Meteorites yield clues to Red Planet's early atmosphere Posted: 16 Apr 2014 11:33 AM PDT Geologists analyzed 40 meteorites that fell to Earth from Mars to understand the history of the Martian atmosphere. Their new article shows the atmospheres of Mars and Earth diverged in important ways early in the solar system's 4.6 billion year evolution. |
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