New research suggests Moon’s water ice built up slowly over billions of years, not from a single event, with shifting lunar ...

Scientists believe they found fresh proof of an ancient ocean on Mars in the form of a “bathtub ring” it left after it dried ...

Astronomy enthusiasts can anticipate a spectacular planetary alignment featuring Mercury, Mars, Saturn and Neptune from April ...

Astronomers at The University of New Mexico have published new research confirming three bodies orbiting the dynamic ...

The lithosphere — the outermost layer of the Earth — has long been assumed to be composed largely of solid rock. But a recent ...

Astronomers have long been puzzled by a cosmic mystery: planets orbiting two stars—like Star Wars’ Tatooine—are surprisingly rare, even though they should be common. New research suggests the culprit ...

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

Titan is the largest of Saturn’s 292 known moons, by far. It’s also the only other cosmic body apart from Earth confirmed to ...

What's behind the odd magnetic fields observed around ice giants? Why, quasi-1D superionic hydrogen, of course.

Scientists estimate that there are billions of planets orbiting stars outside our solar system, with more than 6,000 ...

T he giant planets of the Solar System have complex interiors that have been difficult to pin down. Inside Uranus and Neptune ...