They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

Combining advanced stellar models with data from the ESA’s Gaia telescope, they not only gave a clearer picture but also ...

Benita Albert brings us part two of the two-part series on the career of Bob Benjamin. His career interest in astronomy began soon after graduating from Oak Ridge High School. You will find it ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its thrusters to leave Earth behind, and slipped into an orbit around the Sun, ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

From a window on the International Space Station, astronauts have captured a rare view of a nearby galaxy caught in the act ...

From signs of life on Mars to an interstellar visitor and weakening dark energy, 2025 reshaped space science, raising the ultimate question: are we truly alone in the universe?

Discovered in July, 3I/ATLAS is not your average comet – it’s a giant snowball from beyond our solar system. The comet, ...

JWST observations of the ultra-hot super-Earth exoplanet TOI-561 b provide the strongest evidence to date for an atmosphere ...

The Milky Way is a spiral galaxy containing 100-400 billion stars. Planet Earth sits along one of the galaxy’s spiral arms. Though the Milky Way is generally always visible from Earth, certain times ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...