Why Nasa is crashing a spacecraft into an asteroid – and how to watch it
by Richard Luscombe from on (#642RK)
The Dart mission's planetary defense' experiment hopes to test whether an Armageddon-style impact could be averted
An unprecedented and long-awaited deep-space venture will take place almost 7m miles from Earth on Monday night when a Nasa spacecraft will be deliberately crashed into an asteroid in an attempt to show humanity can avert an Armageddon-style impact to Earth.
Here's what's happening, and why:
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