In a few billion years, our Sun will become so violently hot that it could wipe out all life in the Milky Way. Yet, ...

Eleven times wider than Earth. Over 300 times more massive. And a million times more terrifying. Jupiter may look like a ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

Bill McKinnon shares his story of a career spent studying the geology and geophysics of icy worlds beyond our own. McKinnon, ...

NASA officials respond to reports claiming an exoplanet-hunting balloon crashed in Texas, with the project’s lead scientist explaining what really happened.

Peggy Hollinger The planet Mars as imagined and read by science fiction writer Kim Stanley Robinson. Kim Stanley Robinson ...

KENNEDY SPACE CENTER — SpaceX’s Falcon 9 rocket pierced the Wednesday morning sky as it launched three spacecraft from NASA and NOAA that will study the solar system’s “bubble,” collect information on ...

“The settlement of North America and other continents was a prelude to humanity’s greater challenge: the space frontier,” the ...

It’s a cosmic puzzle piece that doesn’t seem to belong to any known set. We all know the Moon has a side that always faces away from us, but it turns out that far side might be hiding something ...

Contrary to online rumors, Earth still only has one true moon, but astronomers have discovered a so-called 'quasi-moon.' Here's what it is.

2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that ...