moon, Grand Canyon

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...
About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
WASHINGTON, Feb 4 (Reuters) - The Grand Canyon in Arizona is one of ... in diameter, larger than the asteroid that struck Earth 66 million years ago and doomed the dinosaurs.