On Tuesday (May 20), the Seattle-based startup unveiled the outline of the groundbreaking flight, which is called Otter Pup 2 ...

It is an evocative idea: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

DARPA (the U.S. Defense Advanced Research Projects Agency) is looking for a private company to build spacecraft to orbit the moon and search for water. A program solicitation that DARPA released ...

China's space agency has launched a spacecraft that promises to return samples from a pair of asteroids near Mars.

A retired researcher has detected an unusual pulse in the light of nearby stars while looking for signs of extraterrestrial ...

Pointed away from Earth about 404 miles overhead, the orbital observatory will circle the planet from north to south about 14.5 times each day as it images a single, circular strip of the sky. Given ...

At NASA, Peacock uses both spacecraft data and computer simulations to analyze ... which would be the first specifically designed to search for habitable planets beyond our solar system. Peacock is ...

SPHEREx will join the ranks of other space telescopes, filling in a crucial gap by detecting infrared light with wavelengths too long to see with the naked eye. It's an important addition because ...