Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

NASA’s James Webb Telescope captured direct images of gas giants in HR 8799, revealing their carbon dioxide-rich atmospheres.

The SPHEREx telescope will create the most colorful map of the cosmos, while the four satellites of the PUNCH mission track ...

The heliosphere, a cosmic bubble formed by the Sun, protects our solar system from interstellar threats and influences life's ...

Donaldjohanson, a main belt asteroid, could be a relic of a cosmic collision that took place 150 million years ago.

Two space missions reached their conclusion: one with a splashdown, the other with a quiet lunar death. And thrilling new ...

NASA's James Webb Space Telescope was recently used to capture direct images of four Saturn-like exoplanets in a solar system 130 light-years away.

NASA is preparing for the launch of its fifth New Frontiers mission, NF-5, aimed at exploring high-priority scientific ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in ...

The Habitable Worlds Observatory (HWO) telescope will be actively looking for traces of life on Earth-like planets in other ...

Five of Starliner's 28 reaction-control system ... space observers, as the plan for SpaceX to bring Butch and Suni down had been in place for five months at this point. Related: 'Stuck' NASA ...

NASA’s Butch Wilmore and Suni Williams, whose weeklong Boeing Starliner mission turned into an extended stay in space, have ...