The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners ...

In the distant space out beyond the orbit of Jupiter lurks a strange object. Its name is Chiron, a type of outer Solar System body known as a centaur. But even among its fellow centaurs, Chiron is ...

On Mercury, craters are named after “artists, musicians, painters and authors who have made outstanding or fundamental ...

On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther ...

In 2025, the sky will be illuminated by 12 full Moons, plenty of meteor showers, four eclipses and three Supermoons. Here's a ...

Formerly the Large Synoptic Survey Telescope, the observatory was renamed in 2020 to honor Vera Rubin, who died at 88 in 2016 ...

Because they’re so rare and beautiful, it’s no surprise that pallasites are popular for collectors. But some really are extra ...

The Planetary Society website explained that the comet got its name "from how it was discovered. The '2024 G3' comes from it ...

The Guardians of the Galaxy in the Ultimate Universe are drastically different from the cosmic heroes in the main Marvel ...

Our species called this latest 366-day journey around the sun “2024” and packed into it a ton of astronomical and spaceflight ...

Some stargazers are calling it a planetary parade: Every other planet in our solar system can be seen in the sky tonight.