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27.07.9: What Ails Jupiter?

Something has slapped the largest planet in our solar system as of late. A large black spot has emerged in Jupiter’s southern polar region, reminiscent of the Shoemaker-Levy 9 collision of 15 years...

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30.9.9:Messenger; A 1st Look at the 3rd Pass.

NASA’s Messenger spacecraft skimmed the barren surface of the solar systems’ inner most world Tuesday evening, revealing more of its unmapped surface. Messenger zipped 141 miles above the surface of...

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An Ephemeris of the Martian Moons.

This is a quick posting of the best apparitions of the moon of Mars, Deimos and Phobos, as promised in the Mars opposition post. The tables run for a week after opposition, and are accurate to about 10...

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12.03.10:Update: A Phobos Flyby/Martian Moons Ephemeris II.

   Mars Express scouts the proposed landing site(s) for Phobos-Grunt.     The pictures are in: ESA’s Mars Express has performed two close flybys of Phobos in the past weeks and performed sensitive...

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05.02.11: Postcards from Saturn.

Rhea and friends…(Credit: Cassini/NASA/JPL). Ahhhh, but to be a fly aboard a Saturn-circling mission… this weekend, I want to turn your attention to some fairly amazing imagery coming from NASA’s...

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