NASA spacecraft collides with asteroid in planetary defence test
NASA has deliberately crashed a spacecraft into an asteroid, and the world got to watch it in real-time. It was all done in the name of humanity's survival. Al Jazeera's @Rob Reynolds reports. – Subscribe to our channel: http://aje.io/AJSubscribe – Follow us on Twitter: https://twitter.com/AJEnglish – Find us on Facebook: https://www.facebook.com/aljazeera – Check our website: https://www.aljazeera.com/ @AljazeeraEnglish #Aljazeeraenglish #News #NASA #Space
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