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Asteroid set to fly by Earth today

19 April 2017 Last updated at 06:39 BST

An asteroid called 2014 JO25 is due to fly past the Earth today.

Don't worry - Nasa has said there is no danger that the rock will hit our planet! In fact, it will pass us at a distance of 1.1 million miles away.

It is the first time that the asteroid has flown near to Earth like this for 400 years - and it doesn't plan on coming back for another 500 years - so scientists are looking forward to studying it as it sails past.

Martin has been finding out more...

Pictures courtesy of Nasa