A large asteroid, dubbed 2020 GA3, will “closely” approach Earth at 22:50 GMT on 20 April, Nasa’s Centre for Near Earth Object Studies revealed on its tracking website. The space rock measures between 26 and 59 metres in diameter, and is expected to fly at a speed of 17.42 kilometre per second, according to CNEOS estimates.
The object is believed to intersect our planet’s orbit by following a natural trajectory, and is hopefully going to pass safely nearby, at a distance of 0.02076 astronomical units. For comparison, one astronomical unit roughly equals the distance between the Sun and our planet, which is about 150 million kilometres, meaning that 2020 GA3 is expected to safely pass by the Earth at a distance of around 3 million kilometres. However, no one knows what can happen when such a massive space rock, larger than the Tower of Pisa in Italy, will zip past.
2020 GA3 was first discovered on 15 April and classified as an Apollo asteroid.
As it was revealed in the National Near-Earth Object Preparedness Strategy distributed in 2018, any space objects measuring in size close to one kilometre can be potentially devastating for our planet in terms of secondary effects they can create, including tsunamis.