giant meteorites

If you've ever seen a movie like '2012' or 'Armageddon', or read the book 'On the Beach', you've probably envisioned some of the threats that could have killed our planet's life.

American astronomers warn a meteorite of nearly 3.2 km in diameter can cause intense earthquakes and tsunamis that threaten humanity.

Astronomers from the European Space Agency (ESA) are listing objects that are likely to hit the Earth in the next century.