REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

A NASA scientist has predicted where a huge asteroid - the size of Big Ben - could potentially hit Earth in seven years' time ...

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes ...