James Webb Space Telescope reveals a planet's death plunge into its star, challenging previous theories and shedding light on how giant planets may spiral inward and perish.

The two brightest nighttime stars available in the Minnesota and Wisconsin sky are Sirius and Arcturus. April is the only ...

Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

WASHINGTON (Reuters) -In May 2020, astronomers for the first time observed a planet getting swallowed by its host star. Based ...

Astronomers have long suspected that an enormous, unseen planet is hiding somewhere far beyond Neptune, quietly shaping the ...

The alarming news from the recent DESI data on the expansion of the Universe is that the energy density of the vacuum might ...

Astronomers have discovered a rare pair of white dwarfs destined to explode in a spectacular supernova in Earth’s cosmic ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

Astronomers have spotted two hefty white dwarf stars - highly compact stellar embers - orbiting close together that appear ...