Orion Rocks! Pebble-Size Particles May Jump-Start Planet Formation
Washington DC (SPX) Aug 29, 2014 - Rocky planets like Earth start out as microscopic bits of dust tinier than a grain of sand, or so theories predict. Astronomers using the National Science Foundation's (NSF) Green Bank Telescope (GBT) 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 typic ... more
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