Fruit Fly Sperm Are Giant. How Do They Stay Untangled?

SpaceX has quietly launched a spacecraft almost no one knew existed

Ancient proteins hint at all-female Homo naledi burial site in Rising Star cave system

The Soviet Union launched nearly 30 spacecraft at Venus and became the only nation ever to land on its surface and send back pictures — color photographs of a scorched volcanic plain under a yellow-green sky, shot in the few dozen minutes before the heat

Soviet Venus missions reveal a planet of extremes—and NASA’s bold plan to explore its habitable sky layer

NASA's aging infrastructure can't handle Artemis launches without $1 billion in upgrades, watchdog warns

Euclid View of Milky Way Heart Previews Core Survey by NASA’s Roman

Twin ‘super-puff’ planets offer clues to cosmic evolution

Astronomers have discovered a pair of rare, low-density exoplanets described as having the consistency of cotton candy.