Gallery: Sweeping Aerial Shots of Spain Look Like Alien Terrain

The cloud has baffled astronomers since its discovery in 2018. Now, a new study offers a possible cause for its appearance.

The new image isn’t just stunning—it may also provide clues about how this star survived its own explosion.

Made up of small fragments left behind by Halley’s Comet, these meteors are known for being especially bright and speedy.

Lying beyond Pluto, 2026 ED138 could be as large as 1,500 kilometers in diameter. Astronomers are still working to confirm whether it meets the criteria for a dwarf planet.

The data drop includes photographs, audio, video, and astronauts’ notes that will be used to study the moon and prepare for future human missions.

Seven of 16 planetary vital signs are in their most extreme state ever recorded, and El Niño is here to make matters even worse.

As coastlines change, so do surf breaks. That may spell the end for premier waves and the tourist economies that depend on them.

Though scaled back from initial plans of landing, the voyage will serve as a dress rehearsal for when humans return to the moon’s surface.

A global network of detectors are reporting some of the most substantial measurements yet of neutrinos created deep underground by the radioactive elements that power our planet’s tectonic activity.

Under 1 million years old, “Elias 2-24b” is now the youngest exoplanet ever observed, and it may force researchers to reevaluate theories about how planets are formed.

JAXA is leading an international mission to reach Mars’ Phobos moon and bring soil back to Earth. If successful, it could unlock new clues about the history of the solar system.

Here’s what we know about the record-setting El Niño on a record-hot planet, and the most important questions scientists are trying to answer.