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2018年11月26日星期一

NASA小行星2018 LF16警告: 700呎闊太空石頭由2023年至2117年62次軌道風險撞擊地球

NASA小行星2018 LF16警告: 700呎闊太空石頭由2023年至2117年62次軌道風險撞擊地球
NASA asteroid WARNING: 700-foot-wide space rock on 62 RISK trajectories with Earth by 2023

A MONSTER asteroid more than twice as tall as the Statue of Liberty is on 62 potential impact trajectories with Earth between 2023 and 2117, NASA has warned.

The nearest potential impact date with the asteroid, dubbed Asteroid 2018 LF16, falls on August 8, 2023. The asteroid could then cross paths with the Earth’s orbit again on August 3, 2024, and August 1, 2025. In total, there are 62 dates on which the space rock could hit the Earth, although the risk of this cataclysm happening is pretty low.

Based on NASA’s calculations there is a one in 30,000,000 chance of LF16 slamming into our home planet – a 99.9999967 percent chance of a miss.

On the Torino Impact Hazard Scale the asteroid is a ‘Zero’ meaning the likelihood of impact is either nonexistent or as close to nonexistent as possible.

But the sheer size and number of potential impact dates make the space rock and incredibly formidable object to track.

A space rock this big is about twice as tall as Big Ben’s clock tower in London, twice the height of the Statue of Liberty in New York and is four times as tall as Nelson’s Column in Trafalgar Square.


https://www.express.co.uk/news/science/1050061/NASA-asteroid-warning-Earth-collision-risk-2023-Asteroid-LF16


https://youtu.be/_M7re_dVLsU





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