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

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

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 ...

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

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

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...

Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it, of course. Even if ...

The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.

Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in Flagstaff, Arizona in 1929. More than anything, he just wanted to get off the ...