Fraser CainNASA's New Horizons spacecraft is exploring the Kuiper Belt, an icy region of the Solar System that includes objects like Pluto. It was expected that the spacecraft would be starting to exit the region. However, scientists were surprised to discover higher dust levels from micrometeorite collisions with Kuiper Belt Objects. This means the Kuiper Belt could extend farther from the Sun than previously estimated, or a second belt could be even farther out.
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