Neil deGrasse Tyson gave a rousing defense of scientific principles in his characteristic brash way during his Purdue ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these ...

The James Webb Space Telescope has discovered a shocking secret hidden in the clouds of an exoplanet 124 light years away. K2 ...

Nasa’s mission teams use extreme environments to trial equipment and procedures for future lunar and planetary exploration.

Hole in the Sky, by Daniel H. Wilson, is one of Scientific American’s best fiction picks of 2025. In the novel, aliens talk ...

Harvard scientist Avi Loeb claims the interstellar object 3I/ATLAS may be alien technology sent to seed life on Earth, ...

A mysterious red jellyfish-like flashes, which were spotted in the sky, sparked rumours about aliens sending signals to our ...

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red ...

Astronaut and University of Calgary alumnus Robert Thirsk returned to his alma mater this weekend to talk about what life as ...

He cited the astronomical gaffe in January, when The Minor Planet Center in Cambridge, Mass., announced the discovery of an ...

Tech mogul Elon Musk has weighed in on UFO sightings, asserting that neither he nor SpaceX has encountered any evidence of ...

Science books provide the ultimate deep dives into our favorite subjects, whether it’s the inner workings of the brain, ...