NASA and ESA confirm asteroid 2024 YR4 poses nearly zero threat to Earth in 2032, with new observations reducing its risk ...

To see the parade, find a dark place with a clear view of the western horizon at nightfall. Mercury and Saturn will be low in ...

The dream of mining metals in deep space crashed and burned in the 2010s. AstroForge’s Odin mission to survey a potentially ...

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Updates on Asteroid 2024 YR4 have been slower during the full Moon, but experts say the precision of the object’s orbit is ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...