Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action via executive order.

Discovered in 1930 at the Lowell Observatory, Pluto was demoted as a planet in 2006. Some want President Trump to take action via executive order.

For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an ...

The renewed push is stirring controversy nearly two decades after the dwarf planet classification was introduced. Renewed debate NASA chief Jared Isaacman has voiced support for reclassifying Pluto as ...

Astronomers have found an exoplanet that could serve as a benchmark in future studies. It's a rocky planet orbiting an M-type star, and though these planets are plentiful, this one could serve as a ...

Scientists have detected methane gas glowing faintly above Makemake, an icy dwarf planet smaller and farther than Pluto in space. Until now, Pluto was the only object that far out in the solar system ...

WASHINGTON (Reuters) -Astronomers using the Hubble Space Telescope have observed a white dwarf - a highly compact stellar ember - that appears to have gobbled up an icy world akin to the dwarf planet ...

Astronomers may have discovered a new type of planet beyond our solar system, according to new research. The exoplanet, named "L 98-59 d," was first identified in 2019, but further observations using ...

Learn more about L 98‑59 d, an exoplanet 35 light‑years away with a deep global magma ocean ...

In 2020, a study confirmed that two planets orbited the nearby red dwarf, GJ 887. Now, astronomers have confirmed the ...