First near-Earth triple asteroid discovered by Arecibo Observatory astronomers – a mere 7
million miles from Earth
http://www.spaceref.com/news
Once considered just your average single asteroid, 2001 SN263 has now been revealed as the
first near-Earth triple asteroid ever found. The asteroid - with three bodies orbiting each other -
was discovered this week by astronomers at the sensitive radar telescope at Cornell University's
Arecibo Observatory in Puerto Rico.