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Reading Space Dust
Topic: Outer Solar System
12/30/05
The University of Colorado at Boulder's long heritage with NASA planetary missions will continue Jan. 17 with the launch of a student space dust instrument on the New Horizons Mission to Pluto from Florida's Kennedy Space Center.

Two Ring Systems Better Than One
Topic: Outer Solar System
12/25/05
NASA's Hubble Space Telescope photographed a new pair of rings around Uranus and two new, small moons orbiting the planet. The largest ring is twice the diameter of the planet's previously known rings. The rings are so far from the planet, they are being called Uranus' "second ring system."

The Ice Dwarf Cometh
Topic: Outer Solar System
12/20/05
The New Horizons spacecraft, scheduled for launch in mid-January, will investigate the far-off planet Pluto and its icy moons. This will be the first spacecraft to study the Pluto system, as well as the mysterious outer region of our solar system known as the Kuiper Belt.

Kuiper Belt's Quadruple
Topic: Outer Solar System
11/01/05
A team of astronomers at Southwest Research Institute (SwRI) and other institutions has discovered that Pluto has two previously unseen moons. Ground-based observers discovered Pluto's only previously known moon, Charon, in 1978. The planet itself was discovered in 1930.

Kuiper Belt Adding to its Notches
Topic: Outer Solar System
10/07/05
The newly discovered 10th planet, 2003 UB313, is looking more and more like one of the solar system's major players. It has the heft of a real planet (latest estimates put it at about 20 percent larger than Pluto), a catchy code name (Xena, after the TV warrior princess).

Santa et al.
Topic: Outer Solar System
09/10/05
When planetary scientists announced on July 29 that they had discovered a new planet larger than Pluto, the news overshadowed the two other objects the group had also found.

Tenth Planet
Topic: Outer Solar System
07/31/05
A planet larger than Pluto has been discovered in the outlying regions of the solar system. The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine planets already known means that it can only be classified as a planet.

Charon's Occultation
Topic: Outer Solar System
07/23/05
In a feat of astronomical and terrestrial alignment, a group of scientists from MIT and Williams College recently succeeded in observing distant Pluto's tiny moon, Charon, hide a star. Such an event had been seen only once before, by a single telescope 25 years ago, and then not nearly as well.

Voyager I Reaches Final Frontier
Topic: Outer Solar System
05/24/05
NASA's Voyager 1 spacecraft has entered the solar system's final frontier. It is entering a vast, turbulent expanse, where the sun's influence ends and the solar wind crashes into the thin gas between stars.

Pluto's Pair
Topic: Outer Solar System
02/01/05
The evolution of Kuiper Belt objects, Pluto and its lone moon Charon may have something in common with Earth and our single Moon: a giant impact in the distant past.

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