A space satellite that would offer light on demand has astronomers asking: Who controls the night sky?

Shadowy dark matter has eluded scientists for decades. The LZ experiment may have spotted one particle, called a WIMP, but more data is needed to check.

When a meteorite tore through a New Jersey home, the homeowner quickly preserved the fragments. Now, they're giving scientists a look at Earth's early history.

The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else entirely.

Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo.

Astronomers found a helium atmosphere around a rocky exoplanet — a good sign for the search for life outside the solar system.

The brine-formed meteorite that crashed into a New Jersey roof in 2024 could teach us about how life first arrived on Earth.

Proposed federal rules would rely on political appointees to decide how a lot of U.S. science gets done. History shows the consequences of such actions.

A private rocket mission aims to boost NASA’s Swift telescope before its orbit decays, extending its hunt for gamma-ray bursts.

Sporting the world’s largest digital camera, the new telescope is poised to help solve some of the universe’s biggest mysteries.

Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo.

Neptune’s oddball moon Nereid may be the sole remnant of an earlier system, formed near the planet rather than being pulled in from afar.

Jared Isaacman's Pluto push is a master class in science populism

Or, how I learned to stop worrying and love calling my husband by his masculine moniker…with a little help from everyone's favorite dwarf planet.

After looping around the moon, the Artemis II crew — and their capsule’s heat shield — passed the mission’s final major test: coming home.

Space exploration can bring people together and reflect deep societal divisions.

Space exploration can bring people together and reflect deep societal divisions.

Friday, Dec. 19, 2025: Your daily feed for the holiday flyby of interstellar comet 3I/ATLAS by Earth.

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Kai Kupferschmidt, KSJ '24, shares actionable tips for journalists seeking to reduce the harm of misinformation.

Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

Or, how I learned to stop worrying and love calling my husband by his masculine moniker…with a little help from everyone's favorite dwarf planet.

At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

The NASA Mars rover examined a rock containing organic compounds and “leopard spots” that, on Earth, are associated with microbial life.

The six-wheeled geologist found a fascinating rock that has some indications it may have hosted microbial life billions of years ago, but further research is needed.

A rock found last year on the surface of Mars offered tantalising evidence that life once existed on the Red Planet. Now scientists have found yet more evidence that could point to the existence of an...

Sporting the world’s largest digital camera, the new telescope is poised to help solve some of the universe’s biggest mysteries.