A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...

Alone among known planets, Earth has vast oceans on its surface and its landmasses are marked with lakes and extensive river drainage systems. Water is the biosphere's lifeblood, and without it, Earth ...

NASA spotted something moving in one of the moons of Jupiter. Some natural satellites have similar structures to the Earth, and this one is very intriguing.

WASP-121b, an already unusual planet, might have a remote origin that explains some of its peculiar properties—from iron rain ...

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...