Jessica Meir and Her Crewmates Return Safely from the Space Station

NASA astronaut Jessica Meir gives a thumbs up after she, Roscosmos cosmonaut Oleg Skripochka and NASA astronaut Andrew Morgan landed in their Soyuz MS-15.

Kepler-1649c: Earth-Size, Habitable Zone Planet Hides in Plain Sight

This artist's illustration shows what Kepler-1649c could look like from its surface.

NASA 'Optometrists' Verify Mars Perseverance Rover's 20/20 Vision

Equipped with visionary science instruments, the Mars Perseverance rover underwent an "eye" exam after several cameras were installed.

Hubble Spots Spirals Within a Spiral

A galaxy having so many distinct rings is rare, making NGC 2273 unusual. Galaxy NGC 2273 hosts an inner ring and two outer “pseudorings." Rings are created when a galaxy's spiral arms appear to loop around and nearly close upon one another.