Space Is Very Big. Some of Its New Explorers Will Be Tiny.

The success of NASA’s MarCO mission means that so-called cubesats likely will travel to distant reaches…

NASA to Host Media Teleconference on Asteroid Sample Return Mission

NASA is hosting a media teleconference at 1:30 p.m. EDT Tuesday, March 19, to announce new…

March 11 Events Highlight NASA’s Moon to Mars Plans at Goddard

NASA’s Goddard Space Flight Center in Greenbelt, Maryland invites media on Monday, March 11, to get…

New Ultima Thule Photos Were Made in a Flash

The images were recorded while the New Horizons spacecraft was moving at more than 32,000 miles…

Japan’s Hayabusa2 Spacecraft Lands on Ryugu Asteroid

The probe ascended from the space rock after firing a bullet to help with the gathering…

Neptune Has a Newly Discovered Moon. What Else Is It Hiding?

There is much more to learn about the solar system’s eighth planet, which hasn’t been visited…

The Far Side of the Moon: What China and the World Hope to Find

The side of the moon we never see from Earth contains secrets about our solar system’s…

Trilobites: It’s Cold Outside, but Earth Is at Its Closest Approach to the Sun

Our planet’s elliptical orbit doesn’t affect winter or summer temperatures. But some astronomers wonder whether it’s…

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…