An illustration shows what exoplanet K2-18b might look like based on data from NASA's James Webb Space Telescope. K2-18b is 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the ...

The first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying around in saucer-shaped spacecraft. In fact, the life that could be – emphasis ...

What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Using JWST, scientists discovered PSR J2322-2650b — a carbon-rich, lemon-shaped exoplanet orbiting a pulsar — challenging ...

There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...