Here’s a hypothetical: a telescope detects an asteroid between 100 and 300 meters in diameter racing through our solar system at 14 kilometers per second, 57 million kilometers from Earth.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/anasamosaici.jpg)
Source:
https://phys.org/news/2019-04-asteroid-earth-scientists-ponder.html