The Western Military Academy's pond in Alton, active from 1879 to 1971, was a cherished ice-skating location in 1942.

There is a very small chance that an asteroid capable of taking out an entire city could strike Earth in less than eight ...

Firefly Aerospace’s Blue Ghost spacecraft has captured some stunning footage from 75 miles (120 kilometers) above the lunar ...

Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in Flagstaff ...

An asteroid that could level a city now has a 3.1 percent chance of striking Earth in 2032, according to NASA data released ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the spacecraft captured the imagery. Credit: Space.com | footage & orbit animation cou ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

After a month-long journey, Firefly’s Blue Ghost lunar lander has successfully entered orbit around the Moon. After nearly a ...

The moon's orbit is elliptical, or oval-shaped, meaning as its distance from our planet changes, its apparent size changes, ...

A look at key moments at the White House’s signature outdoor setting amid reports that it may be turned into a ...

A glorious, colorful image captured by a telescope in Chile shows the bright glow of star cluster RCW 38, where young stars are being born.

The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...