Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

The unusual behaviour of interstellar comet 3I/ATLAS has reignited online debate, but astronomers say the gaps in public ...

I/ATLAS is old news; NASA's discovery of the mysterious starless object Cloud 9 is rewriting cosmic theory. Here is what ...

Jupiter's moon Europa ‌is on the short list of places in our solar system seen as promising in the search for life beyond ...

The 247th Meeting of the American Astronomical Society (AAS 247) is being held Jan. 4 to Jan. 8 and will feature remarkable ...

JWST observations of the ultra-hot super-Earth exoplanet TOI-561 b provide the strongest evidence to date for an atmosphere surrounding a rocky planet beyond our Solar System.

Harvard Professor Avi Loeb suggests the interstellar object 3I/ATLAS could be an alien probe. Explore the 'anti-tail' mystery ...

Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...

NASA has taken a major step toward one of its most ambitious science goals as it searches for signs of life on planets beyond ...

What seemed like new planets around Fomalhaut were actually expanding dust clouds from violent planetary collisions seen by Hubble.

NASA announced the selection of industry proposals to advance technologies for the agency’s Habitable Worlds Observatory concept.

At the ragged frontier where the Sun’s influence gives way to the galaxy, a decades‑old spacecraft has stumbled into a ...