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World's first planetary defence test


The world’s first full-scale planetary defence test – NASA’s Double Asteroid Redirection Test (DART) mission – is designed to strike an asteroid and adjust its course.

Today the DART spacecraft is expected to collide with a small asteroid, Dimorphos, at a speed of approximately 6.44 km per second.

Dimorphos is 160 metres in diameter, roughly the size of the Great Pyramid of Giza, and orbits a larger companion asteroid, Didymos.

If successful, the DART mission will show that intentionally crashing a spacecraft into an asteroid is an effective way to change its speed and trajectory. What we learn could be applied in future to protect Earth from potentially hazardous asteroids.

What do you think?

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Matt Romania @ 2022.09.30 8:30 AM
I can't wrap my head around how incredible this is! The footage right before impact is jaw dropping. Thanks for sharing! 

IdeaSpies @ 2022.09.30 8:30 AM
Yes Matt- I was surprised when people didn't seem to quickly realise how important this idea is! 

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