NASA asteroid revelation: How ‘overlooked small detail’ could lead to Earth impact

Asteroids are small rocky bodies that usually sit in the inner Solar System, orbiting the Sun. There are millions of them flying around space and their collisions – known as impact events – have played a significant role in shaping many planets. Apophis 99942 is a 370-metre-wide near-Earth orbit space rock that continues to pose a destructive threat.

Initial observations from the space agency in 2004 revealed a probability of 2.7 percent that it could strike Earth in 2029.

Concerns were heightened after the probability was significantly raised by the end of 2004, setting the record of the Torino impact scale for a level 4 threat.

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NASA asteroid revelation: How ‘overlooked small detail’ could lead to Earth impact