Those who supported Pluto’s demotion included Neil DeGrasse Tyson ...

As astronomers continue discovering unusual worlds beyond our solar system, many say the question that divided scientists in ...

Renewing itself on Sept. 10 via 18 degrees of this discerning Earth sign, this new moon initiates a fresh cycle in the part ...

More than 1,300 hours of anime are coming to Pluto TV, including 'One-Punch Man,' 'Naruto,' 'Inuyasha,' and 'Sailor Moon.' ...

The discovery of the Kuiper Belt revealed thousands of icy objects near Pluto, challenging its status as a planet. After the discovery of Eris, astronomers formally redefined “planet” in 2006, leading ...

Pluto lost its planethood for a very specific reason. Whether or not that’s a good reason depends on who you ask.

The original Sailor Moon anime series is about to get a big upgrade on one of the most underrated streaming platforms in the ...

Picture a star, about half the sun's mass shining with a dim red light. Lumbering around it on a 5,000-year orbit is a huge orb called a brown dwarf, which is much heavier than a planet but still not ...

Learn how Pluto nearly kept its planet status in a proposed 12-planet Solar System as its demotion marks its 20th anniversary.

But it’s not time to put away your telescopes, with some lesser-known astronomical events set to arrive across the sky this month. The Pleiades will appear next to the moon, Venus will reach its ...

Picture a star, about half the sun’s mass shining with a dim red light. Lumbering around it on a 5,000-year orbit is a huge orb called a brown dwarf, which is much heavier than a planet but still not ...

Tethys not only has the solar system’s only other two known Trojan moons, Telesto and Calypso, it also has possibly the most reflective surface of any astronomical object we have encountered, a ...