Much of what scientists know about the early solar system comes from meteorites—ancient rocks that travel through space and survive a fiery plunge through Earth's atmosphere. Among meteorites, one ...

Asteroid 2024 YR4 is back in the spotlight. Brand new research has produced a better estimate of its size and orbit, which give it a 3.8 percent chance of hitting the Moon. Now a different group ...

Tantalizing clues in 4-billion-year-old asteroid Bennu samples could reveal particular molecular formations that some ...