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Latest Guest Blog Posts

Schrödinger's Comet

Posted by Karl Battams on 2013/11/28 09:54 CST | 9 comments

After impressing us yesterday, comet ISON faded dramatically overnight, and left us with a comet with no apparent nucleus in the SOHO/LASCO C2 images. As the comet plunged through the solar atmosphere, and failed to put on a show in the SDO images, we understandably concluded that ISON had succumbed to its passage and died a fiery death. Except it didn't. Well, maybe...

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Curiosity update, sols 453-464: Electrical problem causes delays; rover back to work

Posted by Ken Herkenhoff on 2013/11/25 02:38 CST | 1 comment

An electrical problem frustrated progress on the Curiosity mission this week, but the problem is now understood and the rover back to work.

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Field Report From Mars: Sol 3494 - November 21, 2013

Posted by Larry Crumpler on 2013/11/22 05:39 CST | 4 comments

On sol 3485 Opportunity pulled up next to a large outcrop here on the rim of Endeavour crater. The outcrop appears to be impact breccias like those we saw a few sols ago lower down on the ridge. But the texture of the rocks is somewhat different.

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Call Your Representatives, Save Our Science

Posted by Andrew Rivkin on 2013/11/22 10:56 CST | 1 comment

I called one of my Senators earlier today. Before that I called my representative. It was pretty easy.

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ISON, Encke, Mercury, and Home

Posted by Karl Battams on 2013/11/22 10:04 CST | 3 comments

Comet ISON has entered the field of view of the STEREO HI-1A camera, and, in an awesome animation, it joins a large cast of characters already present there.

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Martian Maps: the North Pole

Posted by Bill Dunford on 2013/11/20 05:24 CST | 2 comments

The polar plains, charted in unprecedented detail.

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Comet ISON Enters the Final Countdown

Posted by Karl Battams on 2013/11/19 03:12 CST | 6 comments

We're now less than two weeks away from comet C/2012 S1 (ISON) reaching perihelion and, if we’re honest, we are still none the wiser as to how the situation might play out!

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Curiosity Update: A stop at Cooperstown and a warm reset, sols 433-451

Posted by Ken Herkenhoff on 2013/11/14 01:56 CST

Having racked up several kilometers in the drive to Mount Sharp, Curiosity paused for a second science stop at an outcrop called "Cooperstown." While there, the rover performed a software upgrade and then lost a few days to a software anomaly. The rover has now resumed normal science operations.

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ARTEMIS Mission Update

Posted by Jasper S. Halekas on 2013/11/14 12:27 CST

ARTEMIS is a mission that retasked two probes from the 5-spacecraft Heliophysics constellation THEMIS to study the interaction of the Moon with the space plasma environment.

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Will We Lose Cassini’s "New" Mission at Saturn to Budget Cuts?

Posted by Van Kane on 2013/11/12 06:26 CST | 5 comments

NASA’s shrinking budgets for planetary exploration may force it to decide between continued funding for the Saturn Cassini mission and the continued funding for its Mars missions.

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