On 26 September, Nasa’s Double Asteroid Redirection Test successfully slammed into an asteroid in the name of planetary defence. Here’s why Nasa is hurling spacecraft at space rocks.
It's the size of a fridge, launched into space on a SpaceX Falcon 9 rocket and currently hurtling towards a 160-metre-wide asteroid. In a few short day, the DART spacecraft will crash into Dimorphos.
UArizona Spacewatch discovered the larger of the twin asteroids targeted in NASA s upcoming DART mission encounter arizona.edu - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from arizona.edu Daily Mail and Mail on Sunday newspapers.