The White House's 2026 budget proposal threatens dozens of active and upcoming science missions designed to explore the ...

Astronomers discover Ammonite, a rare icy object beyond Pluto, challenging Planet Nine theory and offering clues to the solar system’s ancient origins.

Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

This image, taken by NASA’s New Horizons spacecraft on July 14, 2015, is the most accurate natural color image of Pluto. This ...

Pluto isn’t considered a planet because it lacks enough gravity to clear its orbit, not just because of its distance. Despite receiving less than 1% of Earth’s sunlight, Pluto is still surprisingly ...

On July 14, 2015, a spacecraft flew by Pluto for the first time! NASA's New Horizons spacecraft spent 9.5 years making the ...

NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Alex Parker This image, taken by NASA's ...

The team launched on June 25, 2025, aboard SpaceX’s Crew Dragon spacecraft, Grace, from Nasa’s Kennedy Space Center. This ...

On July 14, 2015, the New Horizons space probe came within 7,800 miles of Pluto, providing NASA scientists with the clearest photographs and most detailed measurements they've ever seen of the dwarf ...

This evening’s viewing challenge is the planet Mercury. It is less than half a fist above the west-northwestern horizon at ...

Dan Weedman was a senior official at NASA and the National Science Foundation from 1992-2002, including serving as the head ...