Featured in gravitational tug
Dec 18, 2012
Why NASA’s Moon Twins Are Crashing At The Lunar North Pole Later Today
Watch live commentary of the spacecrafts' demise later this afternoon.
Oct 18, 2010
In Case of Asteroid Threat, Deploy Tug-Sats and Heavy Rockets, Apollo Astronaut Says
As evidenced by NASA’s confirmation last week of an asteroid collision observed by Hubble, there are plenty of objects careening...
Nov 07, 2007
A Solar System Like Ours?
Astronomers have discovered an unprecedented fifth planet orbiting a Sun-sized star. Located 41 light years from Earth, the star, dubbed...