The New Horizons Pluto flyby revealed unexpectedly complex geological features on dwarf planets, prompting further investigation into the diversity within the Kuiper Belt. Several dwarf planets, ...

Nobody was using the term Dwarf Planet until 2006 when the International Astronomical Union (IAU) had a vote to redefine what a planet actually is. When the vote passed, Pluto was no longer considered ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

A new color movie combines more than 100 images taken by NASA's New Horizons spacecraft during the probe's historic Pluto flyby in the summer of 2015. The dwarf planet Ceres still holds pockets of ice ...

WASHINGTON (Reuters) -Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it ...

Our search for exoplanets is focused on Milky Way stars. It's been successful, with more than 6,000 detected so far.

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

Astronomers have, for the first time, confirmed a colossal coronal mass ejection from a distant star, a blast so powerful it ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but none have passed the threshold and been accepted as confirmed. But they must ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

Strange hexagonal diamonds may have been jettisoned into space when a dwarf planet collided with a large asteroid around 4.5 billion years ago. A new model exploring the dwarf planet Ceres suggests ...