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Kuiper Belt

Kuiper Belt
Image: NASA/JPL

Kuiper Belt

Meet the Kuiper (rhymes with “wiper”) Belt, a region of “leftovers” from the formation of the solar system. This icy disc-shaped zone beyond the planet Neptune is 30 to 50 times more distant than Earth is to the Sun.

Pluto resides in the Kuiper Belt, as do other dwarf planets. Get the facts about this far-out region.

NASA
New Horizons

New Horizons

In 2006, NASA launched the New Horizons Pluto–Kuiper Belt Mission. Explore the goals of this mission that is traveling to Pluto and beyond in the icy realm of the Kuiper Belt. More...

Article
NASA
Kuiper Belt Objects: Facts

Kuiper Belt Objects: Facts

Among the countless leftover orbiting bits from the formation of the solar systems are comets and dwarf planets. Explore the types of objects in the Kuiper Belt. More...

Article
Space.com
Planetary Images: Kuiper Belt Sizes

Planetary Images: Kuiper Belt Sizes

How big are some known Kuiper Belt Objects in relation to Earth? Check out this artist’s rendering to find out! More...

Images
NASA
Solar System Exploration: Gerard Kuiper

Solar System Exploration: Gerard Kuiper

Netherlands-born astronomer Gerard Kuiper (rhymes with “wiper”) made pioneering discoveries about planets and their moons — and also predicted the existence of the Kuiper Belt! More...

Profile
NASA
Solar System Exploration: Kuiper Belt and Oort Cloud

Solar System Exploration: Kuiper Belt and Oort Cloud

They’re both way, way out there in space in the icy zone, but what is the difference between the Kuiper Belt and the Oort Cloud? Find out here. More...

Article
NASA
The Kuiper Belt Contains Millions of Icy Objects

The Kuiper Belt Contains Millions of Icy Objects

Far beyond Neptune at the edge of the solar system, the objects in the Kuiper Belt may offer clues to planet formation. Be sure to watch the videos. More...

Video
BBC
What Are Trans-Neptunian Objects?

What Are Trans-Neptunian Objects?

Large space objects beyond the orbit of Neptune, Trans-Neptunian Objects (TNOs) include bodies in the Kuiper Belt and Oort Cloud. Want to know more? More...

Article
Planet Facts
What Is the Kuiper Belt?

What Is the Kuiper Belt?

For more than 50 years, scientists predicted that the solar system probably didn’t end with Pluto. In 1992, we found out they were right. More...

Article
Planet Facts

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