A menacing asteroid could bring Earth’s often feuding nations together, at least for a while. Dealing with a large, dangerous asteroid that appears to have our planet in its crosshairs will require a healthy dose of international cooperation, experts say — and it’s best to think about that scenario now, while we have plenty of … Read more
Ground-based radar systems could play a unique role in planetary defense, helping humanity protect Earth by spotting asteroids and comets on potentially devastating collision courses with our planet. This was the conclusion of the National Academies in their 2023-2032 Planetary Science and Astrobiology Decadal Survey. Currently, only one radar system on Earth focuses on detecting … Read more
In recent years there has been a wave of encounters and collisions with various asteroids. Interestingly, the composition of the asteroid debris clusters was surprising in several cases. Asteroid probes from several countries have found no solid objects, but numerous pieces of gravel and boulders loosely connected by the object’s small gravitational field. Lately, it … Read more