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

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

Astronomers have discovered a new type of object that is a starless cloud that failed to form as a galaxy. Here's what to ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

Solar physicists say they have found a key source of intense gamma rays unleashed when Earth's nearest star produces its most ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...