Pluto already pushed spacecraft to the edge of what current mission planning can achieve, and Proxima Centauri is vastly ...

Those who supported Pluto’s demotion included Neil DeGrasse Tyson ...

Hubble spots white dwarf star 'snacking' on chunk of Pluto-like object. The NASA/ESA Hubble Space Telescope has spotted a ...

The spacecraft is currently approaching the outer boundary of the solar system as it prepares to cross into interstellar space.

The discovery of the Kuiper Belt revealed thousands of icy objects near Pluto, challenging its status as a planet. After the discovery of Eris, astronomers formally redefined “planet” in 2006, leading ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic ...

Since it was stripped of planetary status, Pluto’s defenders have been fighting the decision – and they’re only getting more passionate ...

Pluto lost its planethood for a very specific reason. Whether or not that’s a good reason depends on who you ask.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Pluto landed its largest moon, Charon, with a 'kiss'—overturning ...

Pluto was downgraded from a planet to a dwarf planet in 2006 by the International Astronomical Union. NASA Administrator Jared Isaacman has stated his support for President Trump to take action to ...

The names Nix and Hydra have been approved for the two small satellites of Pluto discovered in May 2005. The International Astronomical Union (IAU), the internationally recognized authority for ...

Observations made with the Stratospheric Observatory for Infrared Astronomy (SOFIA) — a Boeing 747SP jetliner modified to carry a 106-inch diameter telescope — help explain how Pluto’s haze is formed ...