Any collisions that Earth has to worry about?
(Once heard the observation that the dinosaurs didn't go extinct because of an impact: they went extinct because they didn't have a space program.)
(Once heard the observation that the dinosaurs didn't go extinct because of an impact: they went extinct because they didn't have a space program.)
The business of deflecting or disintegrating planet-killer asteroids is still the stuff of science-fiction and speculation. The reality of physics is that a sufficient mass with sufficient velocity is not something we would be able to send off-course (enough to make a difference) nor could we detonate it into little harmless splinters.
Earth travels its radius in 3-4 minutes. Delay asteroid by that in its orbit and you did it
If you learn of impact 100 years in advance, your task is only 2 seconds per orbit - less than 1mm/s