A nearby Earth-sized planet offers a rare chance to study how atmospheres survive or disappear on rocky worlds.

For all the drama around getting to Mars, the harder question starts after landing. A person can step onto the planet with ...

Earth’s magnetic field shields our planet from dangerous solar energy and damaging cosmic radiation, while the gravitational ...

About 71% of Earth’s surface is covered by water, and 96.5% of that water is found in the oceans.

A distant Jupiter-like planet has revealed an unexpected secret: water-ice clouds hiding in its atmosphere. The discovery, made with JWST, shows these alien worlds are more complex than scientists ...

Despite problems during the unpiloted Artemis I reentry, the Artemis II crew is confident their heat shield will protect them during a fiery descent to Earth.

Cirrus-like clouds have been discovered on a giant planet 12 light-years away, a finding that could change the search for ...

See how Orion spacecraft from NASA's Artemis 1 mission enters Earth's atmosphere after its successful mission around the moon ...

The extent of human-made climate change may make it tricky for us to notice its reversal at first, explain our readers ...

A team of astronomers led by Elisabeth Matthews at the Max Planck Institute for Astronomy (MPIA) has made a discovery that highlights the limits of most current models of exoplanet atmospheres: ...

Interstellar comet 3I/ATLAS, the third of its kind, is revealing its composition as it heads back into deep space. Scientists ...

NASA has detected a massive gas planet in deep space that is being pulled out of its orbit by a wildly violent and ...