Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.
Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.
Located approximately 27,000 light-years (one light year equals approximately nine trillion kilometres) from Earth — relatively close when it comes to galactic black holes — Sag A* has an estimated ...
Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their ...