Plus, we don’t fully understand the asteroid, either. The asteroid’s density, once estimated to be very high, has been ...

Marsett says SPHERE can even image geological features on an asteroid’s surface. Marsset and colleagues have found that the density distribution of asteroids in the Main Asteroid Belt is bimodal ...

An asteroid the size of nine reindeer is set to pass over the Earth on Wednesday, Christmas, in what is set to be a relatively close holiday flyby, according to NASA's asteroid tracker.