Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why Pluto isn't a planet.

Serving nine UC campuses and two national laboratories, Lick Observatory continues to be at the forefront of groundbreaking ...

Rocket Lab released a new line of customizable solar arrays built to power satellites in any orbit with unmatched efficiency ...

The morning of April 24 will give rise to a striking mini-planetary parade, as Mercury, Venus, Saturn, Neptune, and Earth's ...

Astronomers have spent decades trying to find Earth-like planets beyond our solar system. These worlds are small, cold, and ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

Opinion editor’s note: Strib Voices publishes a mix of guest commentaries online and in print each day. To contribute, click ...

PUNCH, a bold new NASA mission, has successfully taken its first images of the Sun’s corona from orbit using four ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know.

Mars is about 140 million miles from our cozy planet. A human mission to that cold, rocky neighbor would mean being away from Earth for about 3 years. But the things those explorers would see and ...

The startup is tapping a new state funding pool to help low-income families access the benefits of clean energy and battery ...

NASA’s new PUNCH mission just opened its eyes to space, capturing its first images of the Sun’s outer atmosphere and the ...