3 agosto 2015
A mile-long asteroid that raced past Earth July 25 at about 45,000 miles per hour – at a safe distance of 4.5 million miles – was imaged by radar telescopes so that astronomers could discern its precise orbit and physical shape.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/VzAAINkWEIc» height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VzAAINkWEIc/150803103115.htm
