Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, said Renu Malhotra, a planetary scientist at the University of Arizona who has ...

Astronomers discovered that Mercury’s orbit makes it on average the closest planet to every other planet including distant Neptune.

The main working hypothesis for the Mercury problem says that the planet is the victim of a collision with a different-sized object. The cataclysmic collision stripped much of the planet's mantle and ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the innermost planet.

The 10 astronaut candidates, six of them women, will begin two years of training before becoming eligible for missions to low-Earth orbit and perhaps one day to the moon and Mars.

Look, we don’t want to anthropomorphize, but is it possible that a planet that has gone to such lengths to make life impossible might not be too friendly to it anywhere else?

CAPE CANAVERAL, Fla. — NASA introduced its newest astronauts Monday, 10 scientists, engineers and test pilots chosen from more than 8,000 applicants to help explore the moon and possibly Mars.

It wasn’t until the ‘90s that our astronomical powers advanced enough to confirm the existence of worlds around other stars. Since that very first discovery, more than 6,000 exoplanets have been ...

Sandy Brondello’s players loved her to the bitter end. She was spotted in photos of the team’s final, celebratory dinner after flying back home from their Game 3 defeat in Phoenix. After news dropped ...

Sauk Prairie will get a glimpse of one of the two eclipses that will occur over the next thirty days. The total solar eclipse is only visible over the Atlantic ...

An Oct. 6 full harvest moon will be the first of 3 supermoons that will appear in the night sky over the rest of 2025.