In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

The newly discovered "twilight" asteroid, 2025 SC79, was obscured by the sun's glare until an astronomer pointed the Dark ...

According to one hypothesis, the comet is responsible for giving humans the swastika symbol, thousands of years in the past.

A pairing-off of the brightest planet and a slender crescent moon will be the chief celestial attraction in the dawn sky ...

The object is known as 2025 SC79, and it is 700 meters (2,297 feet) across. It goes around the Sun every 128 days, and it ...

Venus is often known as Earth’s twin because it is the closest planet to Earth in size, mass, and composition. Both are rocky ...

Due to the lapse in federal government funding, NASA is not updating this website. NASA’s Webb and Hubble space telescopes are teaming up to find out. The Rocky Worlds Director’s Discretionary Time ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

TRAPPIST-1 e is similar to Earth in size and orbits its star every six days ... It notes that the planet is unlikely to have an atmosphere rich in carbon dioxide like those of Venus and Mars, and ...