Astronomers have been watching the asteroid slowly break apart over the past year.
Scientists believe there may be liquid water on the Jovian satellite.
NASA is developing a humanoid robot that can be used to perform emergency medical procedures on astronauts.
Traces of iron formations hint at the possibility of liquid water just underneath the Martian surface.
First evidence of an icy surface on Ceres, now one of the few bodies in the solar system known to have water.
SETI astronomer Frank Marchis says we’re very close to finding an Earth-like planet orbiting another star.
Conference of scientists envisions manned missions to Mars two decades from now.