BBCNEWS BBC News at Six November 23, 2021 18:26:00
The earth to see if it has worked. 0nboard is also a mini satellite that will film the crash. even a small nudge can make a big difference to an asteroid's path, and that could be vital. a 160—metre—wide rock like dimorphos could devastate populous areas, but smaller ones are a problem too. anything bigger than the 20 metre asteroid that broke up over russia in 2013 and injured hundreds of people are a concern. even the smaller objects can cause quite a lot of damage. a 25—metre asteroid, they will be really hard to spot with telescopes, so we are always pushing the technology and the sc...