Astronomers studying extreme planetary systems have identified worlds so massive that they rival the smallest stars in size.

Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...

Our search for exoplanets is focused on Milky Way stars. It's been successful, with more than 6,000 detected so far.

The James Webb Space Telescope has captured an extraordinary glimpse of weather on a rogue planet 20 light-years from Earth. SIMP 0136, a mysterious brown dwarf, boasts an atmosphere of molten iron ...

In 1999, Belgian physicist Chris Van Den Broeck implemented a minor alteration to Alcubierre’s concept by shrinking the ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Superman and The Fantastic Four: First Steps — the world of cinematic superheroes answered that question with a big yes. Dark and gritty superheroes are out, and upbeat superheroes are in. But these ...

Chewbacca's design for the original Star Wars trilogy combines elements of not just a dog and a cat but also creatures from ...

NASA released new images of 3I/ATLAS as it plunged towards the sun, captured by a host of the agency’s robots and probes.

Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...

We human beings are a miraculous accident; Forces of improbability, on an unimaginable scale, created the correct conditions ...

Los Angeles Lakers star Kobe Bryant knew exactly why LeBron James' Miami Heat were struggling in their first season.