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 ...

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 ...

Newly released imagery from NASA shows the Sun's corona in stunning detail after the Parker Solar probe performed its closest ...

It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

NASA’s New Horizons probe, which hurtled past Pluto in 2015, demonstrates that it can sail through interstellar space using ...