Using the Hubble Space Telescope, astronomers have discovered a new type of cosmic object, a cloud of dark matter and gas ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

A new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar ...

Far out in the Saturn system, a small world refuses to behave. Iapetus spins in a way that should not be so stable, wears a ...

Saturn’s largest moon has long looked like a frozen time capsule of early Earth, but a new set of measurements has upended ...