The white dwarf we see today was once a star similar to the sun but eventually ran out of fuel, swelled up into a red giant, a few 100 times the size of the sun.

Well, tell that to the red dwarf star TOI-6894, which is located 238 light-years away. It has just 20% of the mass of the sun, but has been found to host a giant planet, TOI-6894b, that's a little ...

A white dwarf is what remains after a sun-like star swells up to a red giant during the star's evolution. Red giants burn through their hydrogen fuel and expand, consuming any planets near their path.

Astronomers have discovered a "missing link:" a tiny black hole lurking with a red giant star in a strange and ...

Astronomers have discovered a new exoplanet that may be habitable 35 light-years from Earth. Named L 98-59 f, it joins four ...

Five remain inconclusive. One is a star orbited by a brown dwarf — an object that straddles the line between planet and star — now named Gaia-5b, and one turned out to be a planet, Gaia-4b.

The team has determined that the star is a white dwarf, a system resembling what our sun-Earth system will look like in 8 billion years. The good news: the planet survived its star's red giant ...

The Very Large Telescope in Chile has found, for the first time, an infant planet nestled in spiral arms of dust around a ...

Related: Did a star escape cannibalism by its dead 'monster' white dwarf companion? "We do not currently have a consensus whether Earth could avoid being engulfed by the red giant sun in 6 billion ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of conventional astronomy theory, and is making experts reconsider ...

A gas giant exoplanet with the density of a marshmallow has been detected in orbit around a cool red dwarf star by a suite of instruments, including the NASA-funded NEID radial-velocity instrument ...

The red giant, roughly 1.12 times the mass of our Sun, orbits the white dwarf every 227 days. The two stars are separated by only 0.54 astronomical units, about the same as the distance from the ...