As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

British space scientist Dame Maggie Aderin–Pocock is sure that life is present on some other planet in the universe. Citing ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

Mars. From forming black holes to phantom dark energy, discover the cosmic mysteries astronomers uncovered last year.

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Using JWST, scientists discovered PSR J2322-2650b — a carbon-rich, lemon-shaped exoplanet orbiting a pulsar — challenging ...

Is 3I/ATLAS an alien probe? Breakthrough Listen uses the Green Bank Telescope to search for technosignatures as the ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.