Scientists speculate that asteroids colliding with Earth delivered water—an essential building block of life—but new research ...

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 ...

The Lyrid meteor shower occurs in the middle of April and is one of the most exciting celestial spectacles of the year.

Many researchers believe these ancient rocks played a crucial role in delivering water to early Earth. Before hitting the Earth ... it becomes a “meteorite.” From observing asteroids with ...

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...