During Seven-Hour Spacewalk, Russian Astronauts Gather Clues to Orbital Mystery

Wielding sharp tools, the two men in spacesuits examined a tiny hole that has roiled space…

Voyager 2 Has Entered the Space Between Solar Systems

It is the second spacecraft to make the crossing into interstellar space, providing a new look…

Hear the Sounds of Wind on Mars, Recorded by NASA’s InSight Lander

An instrument aboard the spacecraft for measuring the shaking of marsquakes picked up vibrations in the…

China’s Chang’e-4 Launches on Mission to the Moon’s Far Side

If the mission is successful, the spacecraft would be the first in human history to land…

NASA’s Osiris-Rex Arrives at Asteroid Bennu After a Two-Year Journey

The spacecraft now begins a close study of the primitive space rock, seeking clues to the…

NASA Chooses Private Companies for Future Moon Landings

Nine companies will vie for a share of more than $2 billion dollars to build small…

NASA’s InSight Mission Has Touched Down on Mars to Study the Red Planet’s Deep Secrets

In the months ahead, the spacecraft will begin its study of the Martian underworld, listening for…

11 Things We’d Really Like to Know: Where’s Our Warp Drive to the Stars?

Physicists haven’t given up on the dream of zipping around the universe. Now they’ve come up…

NASA Mars 2020 Rover Gets a Landing Site: A Crater That Contained a Lake

The rover will search the Jezero Crater and delta for the chemical building blocks of life…

Rocket Lab’s Modest Launch Is Giant Leap for Small Rocket Business

The company’s Electron rocket carried a batch of small commercial satellites from a launchpad in New…