ScienceDaily: Astronomy News |
- Galaxy goes green in burning stellar fuel
- Hubble captures comet ISON
- Jupiter's atmosphere still contains water supplied by the Shoemaker-Levy 9 comet impact
| Galaxy goes green in burning stellar fuel Posted: 23 Apr 2013 12:37 PM PDT Astronomers have spotted the "greenest" of galaxies, one that converts fuel into stars with almost 100-percent efficiency. The findings come from NASA's Wide-field Infrared Survey Explorer (WISE), NASA's Hubble Space Telescope and the IRAM Plateau de Bure interferometer in the French Alps. |
| Posted: 23 Apr 2013 10:40 AM PDT When the Hubble picture of ISON was taken on April 10, the comet was slightly closer than Jupiter's orbit at a distance of 386 million miles from the Sun. Hubble photographed a jet blasting dust particles off the sunward-facing side of the comet's nucleus. Preliminary measurements suggest that ISON's nucleus is no larger than three or four miles across. |
| Jupiter's atmosphere still contains water supplied by the Shoemaker-Levy 9 comet impact Posted: 23 Apr 2013 07:23 AM PDT Researchers are reporting Herschel observations of water in Jupiter's stratosphere. It is a clear remnant of the Shoemaker-Levy 9 comet impact on Jupiter nearly 20 years ago. |
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