ScienceDaily: Astronomy News |
- Red Planet's Climate History uncovered in Unique Meteorite
- Early growth of giant galaxy, just 3 billion years after the Big Bang, revealed
- Orion rocks! Pebble-size particles may jump-start planet formation
| Red Planet's Climate History uncovered in Unique Meteorite Posted: 27 Aug 2014 10:15 AM PDT Was Mars — now a cold, dry place — once a warm, wet planet that sustained life? Research underway may one day answer those questions — and perhaps even help pave the way for future colonization of the Red Planet. By analyzing the chemical clues locked inside an ancient Martian meteorite known as Black Beauty, scientists are revealing the story of Mars' ancient, and sometimes startling, climate history. |
| Early growth of giant galaxy, just 3 billion years after the Big Bang, revealed Posted: 27 Aug 2014 10:15 AM PDT The birth of massive galaxies, according to galaxy formation theories, begins with the buildup of a dense, compact core that is ablaze with the glow of millions of newly formed stars. Evidence of this early construction phase, however, has eluded astronomers — until now. Astronomers identified a dense galactic core, dubbed "Sparky," using a combination of data from several space telescopes. Hubble photographed the emerging galaxy as it looked 11 billion years ago, just 3 billion years after the birth of our universe in the big bang. |
| Orion rocks! Pebble-size particles may jump-start planet formation Posted: 27 Aug 2014 08:18 AM PDT Astronomers have discovered that filaments of star-forming gas near the Orion Nebula may be brimming with pebble-size particles -- planetary building blocks 100 to 1,000 times larger than the dust grains typically found around protostars. |
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