ScienceDaily: Astronomy News |
- New insights into the early bombardment history on Mercury
- Variation between hot extrasolar planet atmospheres revealed
- Cosmic radio bursts point to cataclysmic origins
- Feeding galaxy caught in distant searchlight
- Solar prominences put on strange and beautiful show in the Sun's sky
- Mysterious radio flashes may be farewell greetings from massive stars collapsing into black holes
| New insights into the early bombardment history on Mercury Posted: 05 Jul 2013 07:21 AM PDT Astronomers have studied the surface of Mercury to better understand if the plains were formed by volcanic flows or composed of material ejected from the planet's giant impact basins. |
| Variation between hot extrasolar planet atmospheres revealed Posted: 05 Jul 2013 07:20 AM PDT First results from the analysis of eight 'hot Jupiter' exoplanets suggest that winds and clouds play an important role in the atmospheric make up of these exotic planets. |
| Cosmic radio bursts point to cataclysmic origins Posted: 05 Jul 2013 07:20 AM PDT Mysterious bursts of radio waves originating from billions of light years away have left the scientists who detected them speculating about their origins. The burst energetics indicate that they originate from an extreme astrophysical event involving relativistic objects such as neutron stars or black holes. |
| Feeding galaxy caught in distant searchlight Posted: 05 Jul 2013 07:20 AM PDT Astronomers have spotted a distant galaxy hungrily snacking on nearby gas. Gas is seen to fall inwards towards the galaxy, creating a flow that both fuels star formation and drives the galaxy's rotation. This is the best direct observational evidence so far supporting the theory that galaxies pull in and devour nearby material in order to grow and form stars. |
| Solar prominences put on strange and beautiful show in the Sun's sky Posted: 05 Jul 2013 07:16 AM PDT Cloud spotting seems to be growing in popularity as a hobby here on Earth. Now scientists studying the solar atmosphere are building their own collection of fascinating moving features that they've spotted in the Sun's sky. The unusual solar prominences include a giant disc that rotates for several hours, feathery streamers as long as fifty Earths, a super-heated jet striking the top of a prominence and twisted ribbons flowing in opposite directions at a million kilometers per hour. |
| Mysterious radio flashes may be farewell greetings from massive stars collapsing into black holes Posted: 05 Jul 2013 07:16 AM PDT Mysterious bright radio flashes that appear for only a brief moment on the sky and do not repeat could be the final farewell greetings of a massive star collapsing into a black hole, astronomers argue. |
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