When NASA’s New Horizons spacecraft flew past Arrokoth in 2019, scientists expected a simple, battered space rock. Instead, they found a bizarre, flattened contact binary with no impact craters, ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Two inexpensive commercial materials store solar energy as electrons and release hydrogen fuel on demand in darkness, requiring no external power and setting a new performance record.

A small, icy moon of Saturn called Enceladus is one of the prime targets in the search for life elsewhere in the solar system ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging all explanations.

Astronomers discovered a new moon of Uranus and hundreds of moons around Saturn over the past year, and there may be many ...

With family arriving for the holidays and everyone wanting different temperatures, electric companies are sharing tips to keep energy bills manageable during winter celebrations.

Two rare cosmic collisions around the young star Fomalhaut were caught by space telescopes, offering new clues about how planets form.

Installing a reliable solar battery can feel like a simple way to cut energy costs and make your home more resilient — but ...

By compressing and expanding carbon dioxide, this unusual battery solves one of renewable energy’s toughest reliability ...

Astronomers determined that Dagon had never been a planet at all, but rather a brilliant dust cloud produced when two asteroids had crashed into one another ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...