BBCNEWS BBC News November 5, 2021 03:24:00
This is a computer simulation of dart, the double asteroid redirection test, which could be our first line of defence if one of those lumps of rock comes heading our way. nature has given us a set up where we have an asteroid, a nearby asteroid, approaching close to earth, so that we can observe from earth—based observatories, but this is a test. and this is how the test will work. astronomers have long been aware of a pair of asteroids called didymos and dimorphos. some time late next year, dart will target them, smash into them, trying to alter their course. these asteroids are of no dange...