Nasa's Mercury Messenger probe becomes the​ first spacecraft since 1975 to visit the innermost​ planet.

The Mercury Messenger probe is set to become the​ first spacecraft since 1975 to visit the innermost​ planet.

The US space agency Nasa announces details of a​ mission to give the Hubble space telescope a major​ boost.

A Missouri state task force proposes harassment​ law that would charge a felony for harassing​ children online after teen commits suicide after​ receivin...

New observations indicate Saturn's iconic​ rings may be billions of years old - far older​ than previously thought.

Remarkable new images of Earth's highest and​ most mysterious clouds have been captured by a​ Nasa spacecraft.

Nasa delays the launch of space shuttle Atlantis​ until January after a fuel tank sensor appears not​ to work.