The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

While trying to determine if it could use the entire Earth's atmosphere as a massive sensor, DARPA made a highly unusual ...

"The moon flies through Earth's atmosphere," Igor Baliukin, a space physicist at Russia's Space Research Institute in Moscow, said in a European Space Agency (ESA) press release. "We were not ...

Scientists have always been curious about the atmosphere surrounding us, but in the past, they could not just hop on a spaceship to see what was up there. Instead, scientists hiked up high ...

The company has now released a video capturing dramatic images from its final moments in orbit above the planet and the final, fiery plunge back into Earth's atmosphere. — Varda space ...