Grand Canyons on the Moon Were Made in a Matter of Minutes
Two canyons near the south pole of the moon rival the Grand Canyon, both in depth and length. Unlike the sinuous chasm in Arizona, the two lunar canyons, known as…
A Meteorite Is Caught on Camera as It Crashes Outside a Front Door
A couple in Canada were returning home from walking their dogs some months ago when they found a burst of dusty debris on their walkway. They turned to their security-camera…