Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

Astronomers suspect the heart of the Milky Way may be hiding a big secret: a rapidly spinning, highly magnetic, neutron ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?

The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.

CAPE CANAVERAL, Fla. (AP) — A telescope in Chile has revealed in unprecedented detail the swirling splendor of star-forming gases at the heart of our Milky Way galaxy.

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

In Amiri’s calculations, Dyson spheres around white dwarfs tend to produce cooler, fainter thermal emission that peaks in the near- to mid-infrared, while M-dwarf cases can radiate more strongly but ...

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A .

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

Obama thinks extraterrestrials exist and he’s not the only former president to think so... here’s what the scientists believe ...