The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

Humanity has collected samples from three asteroids: the stony type, Itokawa, and the carbonaceous Ryugu and Bennu. Carbonaceous asteroids are the largest class, so it wouldn’t be too surprising that ...

On October 29, three asteroids made a close approach to Earth, and advances in observation networks and analytical software now allow scientists to detect and analyze even small near-Earth objects ...