(Phys.org)—ESA's Herschel space observatory made new observations of asteroid Apophis as it approached Earth this weekend. The data shows the asteroid to be bigger than first estimated, and less reflective.
Jan 09, 2013 in Space Exploration
According to a Russian news story, a report just released by the Russian Academy of Sciences suggests sending a satellite with a radio beacon to asteroid 99942 Apophis for better determining its trajectory and finding out ...
Apr 10, 2012 in Space Exploration