The last asteroid to collide with our planet was 115 years ago, when a space rock roughly 40 metres (130 feet) in diameter exploded in the sky over Siberia.
Experts at Nasa and the European Space Agency will use the James Webb Space Telescope to keep a close eye on the near-Earth asteroid in the coming weeks.
Despite it still having just a 2.3 per cent chance of hitting Earth, 2024 YR4 has prompted space agencies to draw up preventative measures.
A CHILLING simulation video has revealed what it would look like if 'city-killer' Asteroid 2024 YR4 hit Earth.
Scientists explored the remote location in 1927, and found "ample evidence of the asteroid’s destruction caused by the shock wave and heat blast from the aerial explosion," according to Nasa.
