After full moon, the terminator returns, but this time on the moon's opposite side, where it marks the line of advancing ...

Scientists studying Jupiter and Saturn’s polar storms suggest their dramatic differences arise from deep interior properties. Simulations show that “harder” or “softer” gas layers beneath the storms ...

“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

Thick, swirling clouds cover Jupiter from pole to pole. They hold water like Earth’s clouds, but at far greater density.

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

This week, a new analysis of Jupiter's atmosphere estimated that the gas giant has 1.5 times more oxygen than the sun.

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Study finds Mars helps pace Earth's ice ages through gravity. Remove Mars, and a major 2.4-million-year climate rhythm ...

Jupiter’s most famous storm is slimming down, spinning up and behaving in ways that challenge what scientists thought they ...

Scientists have measured that Jupiter releases more internal heat than it absorbs from the Sun, based on observations of its structure, rotation, and atmospheric behavior.