Pluto is the tiniest planet in our solar system with a diameter of roughly 2,377 kilometers, making it even smaller than our ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's ...

Pluto will reach its closest approach to Earth and align opposite the Sun on July 25, appearing slightly brighter (magnitude ...

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an ...

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 ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

JWST has confirmed Pluto’s bizarre atmospheric behavior and its ghostly interaction with Charon. These findings could reshape our understanding of distant icy worlds—and even hint at how Earth once ...

Summer 2015 was marked by a unique astronomical event, which occurs approximately once in ... the history of astronomy. The ...

The globular cluster Messier 22 (M22) reaches its highest point in the sky around midnight local time, specifically for ...

As for Pluto, it eventually suffered the indignity of being demoted by the International Astronomical Union (IAU) from full planet status to “dwarf planet”—a reclassification that Stern and ...