Some sci-fi movies get even better with time, offering mind-blowing spectacle or new storytelling layers with each rewatch.

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

Humans have been scouring the sky for alien life for centuries, and we’ve had, let’s face it, little success. Proposed ...

New photos show off NASA's newly constructed Roman Space Telescope, which will soon help researchers unravel the mysteries of ...

From Borg battles to impossible moral choices, these are the 'Star Trek' episodes that define the hit sci-fi franchise.

Astronomers investigating 3I/ATLAS suggest its unique trajectory allows interstellar observers to detect Earth's industrial ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and ...

Honeybees can solve simple addition and subtraction problems and even possess some understanding of the concept of zero ...

Pandora, the latest in a long portfolio of University of Arizona's space science missions, has cleared its last major ...

3I/ATLAS, the third known interstellar object to enter our solar system, after 'Oumuamua (discovered in 2017) and 2I/Borisov ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an exceedingly rare discovery: a mysterious object passing through the solar ...