A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

The National Park Service is hosting its annual Death Valley Dark Sky Festival beginning Friday, Feb. 21 through Sunday, Feb.

Social media users were floored by the incredible image captured in the viral post, with one saying: "I honestly gasped hard.

Stargazers in parts of the U.S. have a fleeting opportunity this month to catch a rare celestial phenomena—a "parade" of ...

Why the 'Planet Parade' will peak this weekend and look its best until 2036 as all seven other planets in the solar system ...

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

Astronomers have taken a major step in understanding how planets form, thanks to the James Webb Space Telescope (JWST). A ...

Astronomers have peered into an alien planet's atmosphere and found extreme weather unlike anything in the solar system.

The night sky is an object of fascination for many, and the Princeton community is no exception. On select nights throughout ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Make time soon to head outside after the sun sets and study the sky. Five of the brightest planets — Venus, Jupiter, Mars, ...

The moon reaches its farthest point from Earth tonight, known as apogee, making it appear ever so slightly smaller in the ...