This article has been revised to reflect the following correction: An earlier version of this article misstated the altitude of a Virgin Galactic flight last February. It went to space, it did not go orbit.
Scientists knew the impact happened; they just didn't know where. About 790,000 years ago, a meteor slammed into Earth with such force that the explosion blanketed about 10 percent of the planet with black
(CNN) — Once, Mars was a warm planet that could potentially support life and water on its surface. But something changed about 3.5 billion years ago and it lost most of its atmosphere. Only a thin atmosphere
The newly minted astronauts are the first to receive their pins under the space agency's Artemis program. HOUSTON — NASA's newest astronauts are ready to come out of their shells and walk on the moon.