Shattering an in-bound asteroid may be tougher than thought - Astronomy Now Online
- Shattering an in-bound asteroid may be tougher than thought Astronomy Now Online
- Asteroids are much harder to blow up in order to save Earth than we had thought, scientists warn The Independent
- Nasa: Asteroids harder to destroy than we thought and it's bad news Metro
- Asteroids are stronger, harder to destroy than previously thought Phys.org
- NASA asteroid ALERT: Asteroids 'STRONGER and HARDER TO DESTROY' than first thought Express.co.uk
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