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Stories, updates, insights, and original analysis from The Planetary Society.

Mars rising over moonbow in Haleakala Crater in Maui

Mars and a moonbow

Moonbows represent the same phenomenon as rainbows, it's just that the light from the Sun has reflected off of the Moon first before it's separated into its colors by the myriad tiny water droplets in the cloud.

Global view of Venus from Mariner 10

What about the non-imaging data from spacecraft?

Data from all science instruments on all of NASA's and ESA's space missions, not just cameras, is archived in the Planetary Data System and Planetary Science Archive, and almost all of that data is available online.

Path of near-Earth asteroid 2010 AL30

2010 AL30: Watch out for low-flying asteroids

In less than 24 hours, a newly discovered asteroid known as 2010 AL30 will be zipping past Earth at an altitude of approximately a third the Earth-Moon distance. There's no chance it'll hit us, but it's generating a lot of excitement in the community of amateur and professional near-Earth asteroid observers.

All Rosetta NAC images of Steins (animation)

Results from the Rosetta Encounter with Asteroid 2867 Steins

Last week in Science magazine appeared the first peer-reviewed article on the results of Rosetta's September 2008 encounter with the smallish main-belt asteroid Steins. This morning I got a chance to sit down and read the article, and I wrote up a summary.

Rotating Steins

Asteroid 2867 Steins

This description of asteroid 2867 Steins is based upon an article published in the January 8, 2010 issue of Science by H. Uwe Keller and numerous coauthors and on a related press release.

Spirit forward hazcam animation, sols 2078-2138

Spirit's still "extricating"

It's been two months, now, that extrication efforts have been going on. It's discouraging that the Mars Exploration Rover Spirit isn't out of the trap.

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