The faces in the video are calm. Some smile. One woman is almost crying. None of them sound afraid. They speak softly into ...

An alien comet is slipping away forever. For a few hours only, a livestream will show its final cosmic goodbye.

However, the Italy-based The Virtual Telescope Project will give one last live peek at the exocomet as it cruises toward the ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

For over two decades, millions of people volunteered the computational capacity of their computers to help UC Berkeley ...

The third known visitor from interstellar space, comet 3I/ATLAS, is putting on a show that plays out in high‑energy light ...

The CIA's Glomar response to a records request about the interstellar object 3I/ATLAS has sparked speculation and debate over ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

Comet 3I/ATLAS, only the third interstellar object ever observed, is making its final pass through our skies, offering a rare ...

Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope ...

When an object from outside our star system zooms through our neighborhood in the solar system, it provides a rare ...

“new data indicates that the periodic wobble of the jet around the rotation axis did not change during perihelion” ...