A failed Venus mission fell from the sky over the weekend after aimlessly orbiting Earth for the past 53 years. Various ...

This Cold War outpost concealed more than submarines—it hosted a devastating eruption that cooled the planet nearly 200 years ...

A Soviet spacecraft launched in 1972 on a failed mission to Venus is believed to have crashed back to Earth early on Saturday morning. The European Space Agency, which was monitoring the craft’s ...

Thanks to a rocket malfunction, however, it never escaped Earth orbit. Most of its launch debris fell back to our planet’s surface within a decade—but a half-ton, three-foot-wide, spherical ...

An unknown volcano erupted so explosively in 1831 that it cooled Earth’s climate ... the scientists linked the 1831 eruption to an island volcano in the northwest Pacific Ocean, they reported ...