How Diffractive Solar Sails Could Stop a Killer Asteroid at 100 km/s
Illustrative image Asteroids don’t come with a warning label that they might one day hit Earth. While we don’t know of any currently on course to do so, we are finding thousands of new ones each year, and there’s always a potential that one could. We proved a viable technique for dealing with that eventuality - the DART mission successfu…
Source：Universe Today
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