How NASA’s Curiosity Rover Weighed a Mountain on Mars

With a bit of technical improvisation, scientists worked out that the bedrock of Mount Sharp appeared…

‘This Could Be the End’ for NASA’s Mars Opportunity Rover

The agency has received only silence from the intrepid explorer since contact was lost during a…

Trilobites: A Sharper Picture of Ultima Thule From NASA’s New Horizons

The spacecraft captured the image when it was 4,200 miles from the object in the solar…

What Happened to Earth’s Ancient Craters? Scientists Seek Clues on the Moon’s Pocked Surface

The pace of space rocks pummeling Earth and the moon was relatively infrequent, but then doubled…

What We’ve Learned About Ultima Thule From NASA’s New Horizons Mission

The team that manages the spacecraft will have to wait 20 months for all of the…

Snowman-like Photo of Ultima Thule Sent Home by NASA’s New Horizons Spacecraft

At a Wednesday news conference, scientists will announce some of the results from the flyby of…

NASA’s New Horizons Takes Photos of Ultima Thule, 4 Billion Miles Away

Now scientists await a bounty of new data about the small, mysterious icy body, the most…

Follow NASA’s New Horizons Mission as It Heads for New Year’s Flyby With Ultima Thule

The probe that visited Pluto will study a mysterious icy world just after midnight. Ultima Thule…

A Journey Into the Solar System’s Outer Reaches, Seeking New Worlds to Explore

NASA’s New Horizons spacecraft will visit a tiny and mysterious object in the Kuiper belt on…

Trilobites: It’s the Solar System’s Most Distant Object. Astronomers Named It Farout.

Orbiting 11 billion miles from the sun, this tiny world offers additional clues in the search…