The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Over the years, passing spacecraft have observed mystifying weather patterns at the poles of Jupiter and Saturn. The two ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

In addition to shaping the interior of rocky planets, molten rock located deep within these planets may also contribute to ...

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

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

For many years, astronomers have been looking for extraterrestrial life. In doing so, astronomers have narrowed their search ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the extent to which Mars is quietly tugging on Earth's orbit and shaping the ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

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