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

A multitude of new moons have made their presence known around Jupiter and Saturn, bringing their population of moons to 101 and 285, respectively.The new discoveries also bring the total number of kn ...

President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump sign an executive order?

The Solar System is a weird place filled with incredible physics and geological oddities that often break down in human terms ...

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.

Pluto lost its planetary status in 2006. Nearly two decades later, people are still arguing about it — and now the argument has reached the White House. NASA Administrator Jared Isaacman told the ...

An illustration of the collision. (Andy Tzanidakis) A distant star whose light suddenly flickered like a guttering candle has ...

Analyzing images of the moon’s darkest areas from ShadowCam, a NASA instrument on the Korea Pathfinder Lunar Orbiter, the study’s authors determined that, in most of the moon’s darkest craters, water ...

Our solar system is way more bizarre and dynamic than what our school textbooks taught us. From Venus being super hot to ...

Brown dwarfs get a bad rap in the stellar world, often labeled as "failed stars" for their inability to sustain nuclear fusion at their cores. The mass of these objects falls between planets and stars ...