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Sharpest-Ever Views of Pluto and Charon
Topic: Outer Solar System
Summary: Pluto and Charon were recently captured in high-resolution images with a ground-based telescope using a method called reconstructive speckle imaging. The images show how useful this method could be in the search for extrasolar planets.

Does Triton Have a Subsurface Ocean?
Topic: Outer Solar System
Summary: Neptune's largest moon Triton is most likely a captured Kuiper Belt Object. The capture of icy Triton and the subsequent taming of its orbit likely led to the formation of a subsurface ocean through tidal heating. New research suggests that this ocean could still exist today.

The Kuiper Belt at 20
Topic: Outer Solar System
Summary: Planetary science is celebrating the 20th anniversary of the discovery of the Kuiper Belt. Since 1992, more than 1,000 objects have been discovered in this distant region of our solar system.

Voyager at 35
Topic: Outer Solar System
Summary: Thirty-five years ago, NASA's Voyager 2 spacecraft, the first Voyager spacecraft to launch, departed on a journey that would make it the longest-operating NASA spacecraft ever.

Signs Changing Fast for Voyager
Topic: Outer Solar System
Summary: New data from the Voyager 1 spacecraft has revealed that three key signs of changes expected to occur at the boundary of interstellar space have changed faster than at any other time in the last seven years. Data from Voyager includes measurements of high-energy cosmic rays from outside the Solar System, low-energy particles originating from inside the Solar System, and studies on the direction of the magnetic field

Pluto's Fifth Moon
Topic: Outer Solar System
Summary: Using data from the Hubble Space Telescope, astronomers have discovered a fifth moon orbiting the dwarf planet Pluto. The finding provides additional clues about how the Pluto system formed and evolved.

The Heliosphere Bow Shock Does Not Exist
Topic: Outer Solar System
Summary: A new study reveals that the heliosphere is not preceded by a bow shock as it plows through the gas and dust in interstellar space.

Uranus Aurora Glimpsed from Earth
Topic: Outer Solar System
Summary: For the first time, scientists have captured images of auroras above the giant ice planet Uranus.

The Rings of Pluto?
Topic: Outer Solar System
Summary: Like other bodies in the outer Solar System, Pluto may have have rings orbiting it. Finding these rings could be important for the safety of NASA's New Horizons mission - currently en route to the tiny world.

Evidence for Complex Molecules on Pluto's surface
Topic: Outer Solar System
Summary: New data from the Hubble Space Telescope indicates that complex hydrocarbon and/or nitrile molecules may be present on the surface of Pluto.

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