NASA already flies two famous space telescopes, Hubble and James Webb. A third is almost ready: the Nancy Grace Roman Space ...

NASA's next big planet hunter is designed to explore regions of the galaxy that almost no one has looked at or studied. The Nancy Grace Roman Space Telescope, now fully assembled (after construction ...

NASA's James Webb Space Telescope has revealed new details about the blistering lava planet 55 Cancri e, where temperatures ...

Astronomers have uncovered one of our cosmic neighborhood's most famous star systems, revealing a third planet that has evaded discovery for more than a decade.

Hubble has revealed a giant planet-forming disk unlike anything astronomers have seen before. Nicknamed “Dracula’s Chivito,” the enormous structure appears turbulent and oddly lopsided, with towering ...

Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" ...

The last time NASA’s Pegasus barge floated up to Kennedy Space Center, it was hauling the core stage for next year’s Artemis III mission, worth more than $2 billion. Sunday’s payload more than doubled ...

Astronomers have catalogued more than five thousand planets orbiting distant stars, and a handful of them defy almost everything scientists thought they knew about how planets should look or behave.

More than 6,000 exoplanets, or worlds beyond our solar system, have so far been confirmed. The new technique involved analyzing old data from NASA's TESS satellite, focusing on fainter stars. Finding ...

Explore decades of incredible images and videos of stars, planets, moons, and galaxies—most of which are free to use and ...