By CARL ZIMMER Viroids, naked loops of RNA, attack crops and other plants today, but new research suggests they existed at the earliest stages of life on Earth. Published: September 25, 2014 at 12:00AM from NYT Science http://ift.tt/1vjE81q via IFTTT
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The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away. NGC 206 is near top center in this gorgeous close-up of the southwestern extent of Andromeda’s disk, a remarkable composite of data […]