This research helps us understand the violent nature of cosmic collisions and their role in shaping planetary landscapes. By ...

WASHINGTON - The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual ...

About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new<a class="excerpt-read-more" href=" More ...

A newly discovered asteroid has a tiny chance of smacking Earth in 2032, space agency officials said Wednesday. Scientists ...