Space on MSN2d
'There are lots of mysteries in our backyard': Revised solar system chemistry explains long-standing puzzles
Pluto and other large bodies in the Kuiper Belt are surprisingly rich in rock rather than ice. It may be because the early ...
CNN18d
Scientists have fiercely debated the existence of ‘Planet 9’ for a decade. Some say evidence is piling up
The 2005 revelation set off a chain of events that led to Pluto’s still-controversial demotion from planet status the following year. But now, just as the Kuiper Belt effectively took a ninth ...
A new mission to Pluto could answer the questions raised by New Horizons
Pluto may have been downgraded from full-planet status, but that doesn't mean it doesn't hold a special place in scientist's ...
Live Science on MSN9d
Why is Pluto not considered a planet?
Subscribe today and save an extra 5% with checkout code 'LOVE5' Engaging articles, amazing illustrations & exclusive ...
‘About 5-7 times Earth’s mass’: A massive planet that could kill Pluto may be hiding in plain sight
Earth' 5-7 times Earth's mass might lurk in the Kuiper Belt, reshaping our solar system. Planet Nine could explain mysterious ...
Why is Pluto no longer a planet?
In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...
Team proposes new solar composition ratios that could reconcile longstanding questions
A Southwest Research Institute-led team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids ...