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 ...

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

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

A major new study lays out plans for crewed missions to Mars, with the search for extraterrestrial life being a top priority ...

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 ...

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

Data from the James Webb Space Telescope suggests that exoplanet TOI-561 b is surrounded by a thick atmosphere above a global ...

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

Aliens are a staple of sci-fi filmmaking, but some classics like Back to the Future, Children of Men, and Interstellar don't ...

Harvard astrophysicist Avi Loeb warns that the interstellar object 3I/ATLAS might be a deliberately steered alien probe—an ...