NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come ...

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

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

As the agency's SPHEREx space telescope and PUNCH solar mission rode toward their orbital ... said Farah Alibay, the lead ...

The James Webb Space Telescope captures the first direct images of carbon dioxide in a distant planetary system, HR 8799, ...

The James Webb Space Telescope (JWST) has achieved groundbreaking discoveries in the field of exoplanet studies.

Even the little-understood Oort Cloud, at the outer edges of our solar system beyond view, has a partly spiral structure.

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.

Engineers at NASA's Jet Propulsion Laboratory have conserved energy supplies on the record-setting Voyager 1 & 2 deep space ...