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10 August 2008
The Pluto Revolt: Leading Astronomers Want the Plutoid to be Reinstated as a Planet
If you thought Pluto was going quietly and giving up its planetary status without a fight, think again. Leading astronomers have spoken out against the International Astronomical Union (IAU) decision to classify the dwarf planet as a "Plutoid," described by some critics as a "celestial underclass." The IAU decision was made after it was deemed [...]
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19 June 2008
2012: Planet X is not Nibiru
The Solar System's outer reaches still contain many minor planets yet to be discovered. Ever since the search for Planet X began in the early 20th Century, the possibility of a hypothetical planet orbiting the Sun beyond the Kuiper Belt has fuelled many Doomsday theories and speculation that Planet X is actually the Sun's long [...]
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10 April 2008
Why Pluto is No Longer a Planet
This has got to be be one of the most heartbreaking questions I get asked, "Why Isn't Pluto a Planet". And I get it a lot. I was expecting that a few years after the International Astronomical Union's controversial decision, the debate would have settled down and people would finally accept it. But no, it's [...]
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27 February 2008
Pluto's Moons, Nix and Hydra, may have been Adopted from Solar Orbit
The mini-moons of Pluto, Nix and Hydra, were discovered in 2005 (but named in 2006) during an observation campaign by the Hubble Space Telescope. The discovery of these mini-moons increase the number of natural satellites orbiting Pluto to three (including larger moon Charon). But where did these satellites come from? The current accepted theory on [...]
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26 November 2007
Podcast: Pluto and the Icy Outer Solar System
It's been a long journey, 64 episodes, but now we're back where we began: Pluto. Last time we talked about how Pluto lost its planethood status, so we won't go over all that again. This time we're going to talk about Pluto, its moons, the Kuiper belt, and the other icy objects that inhabit the [...]
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17 July 2007
Pluto's Moon Charon has Geysers Too
It's only been a few months since the discovery of ice geysers on Saturn's moon Enceladus, and now this dynamic process is turning up all over the Solar System. Astronomers think they've found a similar phenomenon on one of the strangest places: welling up from the surface of Pluto's moon Charon. The discovery was made using [...]
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03 May 2007
Torrent of New Jupiter Images from New Horizons
Although its primary target will be Pluto, NASA’s New Horizons spacecraft is taking the time to do a little science along the way. During its recent Jupiter flyby, the spacecraft was able to test out its scientific instruments as a dress rehearsal for its final Pluto encounter. NASA held a big press conference this week, [...]
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30 March 2007
More Images from New Horizon’s Jupiter Flyby
Even though New Horizon’s Jupiter flyby happened weeks ago, scientists are only just starting to crunch through the data sent back. They’re revealing better and better images of Jupiter, taken by the spacecraft’s powerful instruments. The image attached to this story was taken using New Horizon’s LEISA infrared camera. It’s a false colour photograph - [...]
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