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Sturzstroms on Saturn's Moon Iapetus

Posted by Kelsi Singer on 2012/10/01 04:31 CDT

Long-runout landslides (sturzstroms) are found across the Solar System. They have been observed primarily on Earth and Mars, but also on Venus, and Jupiter’s moons Io and Callisto. I have just published a paper about sturzstroms on Iapetus.

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Curiosity Update, Sol 52: Glenelg Ho!

Posted by Emily Lakdawalla on 2012/09/28 02:28 CDT

Curiosity has pulled up to the edge of Glenelg, its first destination within Gale crater.

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Cosmoquest Science Hour, Wednesday: A virtual field trip to the hills on Curiosity's horizon

Posted by Emily Lakdawalla on 2012/09/25 04:50 CDT | 2 comments

I'm hosting this week's Cosmoquest Science Hour, and plan to take viewers on a virtual tour of those mountains on Curiosity's horizon, and show you where Curiosity is likely to go. Join me and Fraser Cain here at 1600 PDT / 2300 UTC Wednesday.

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VIDEOS: Nye & Teens in Space as Curiosity Lands in Hi-Def!

Posted by Mat Kaplan on 2012/09/19 12:06 CDT | 2 comments

Losing your enthusiasm for space exploration and science? Watch these new and terrific videos for an exhilarating shot of Vitamin S.

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Spring arrives to Vesta's north pole, as Dawn departs, plus a request for citizen scientists

Posted by Emily Lakdawalla on 2012/09/11 11:08 CDT | 3 comments

Dawn's last images of Vesta peek into previously shadowy north polar territory. As the spacecraft leaves Vesta behind, its science team requests help from the public.

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The Planetary Society Celebrates 35 Years of Voyager

Posted by Casey Dreier on 2012/09/07 02:12 CDT

The Planetary Society welcomed Dr. Ed Stone, Voyager Project Scientist for the past forty (yes, forty) years to the stage for an intimate evening discussing the past, present, and future events for the enduring Voyager spacecraft.

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RBSP to explore decades-old radiation belt mysteries

Posted by Jason Davis on 2012/08/24 11:01 CDT

NASA's Radiation Belt Storm Probes will shed new light on the Van Allen Radiation Belts, a dangerous region of space in our planet's backyard.

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New spots on Uranus

Posted by Emily Lakdawalla on 2012/08/22 05:42 CDT | 5 comments

New Hubble photos show that Uranus has both dark and bright spots!

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Curiosity sol 11 update: Decision to drive to "the high thermal inertia unit" and what that means

Posted by Emily Lakdawalla on 2012/08/17 06:06 CDT | 8 comments

Some notes from this morning's Curiosity press briefing: the rover will be driving to "Glenelg" to investigate the "high thermal inertia unit." I explain what that means, with psychedelic Odyssey THEMIS images of the landing site.

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See What's NEXT for Humanity

Posted by Mat Kaplan on 2012/08/16 01:23 CDT | 5 comments

A new monthly series of Southern California Public Radio events begins with a look at how intelligent machines and virtual humans will change what it means to be a real human. Attend or watch the live webcast tonight, Thursday, August 16.

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Cosmoquest Science Hangout Wednesday August 1: Mihály Horányi, lunar dust expert

Posted by Jason Davis on 2012/07/30 12:31 CDT

I'll be guest hosting this week's Cosmoquest Science Hangout on Wednesday, August 1. The show starts at 2300 UTC, and my special guest is Mihály Horányi.

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A fifth moon for Pluto, and a possible hazard for New Horizons

Posted by Emily Lakdawalla on 2012/07/16 02:55 CDT | 9 comments

Pluto is now known to have at least five moons (Charon, Nix, Hydra, P4, and the newly discovered P5), and its burgeoning population might pose a risk to New Horizons during its flyby, three years from now.

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Talking Climate With Bill Nye

Posted by Mat Kaplan on 2012/07/03 04:04 CDT | 2 comments

Talk about changing climates on this world and others brought 600 people to the Boulder Theater.

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A geochemist's Periodic Table of Elements

Posted by Emily Lakdawalla on 2012/06/25 07:39 CDT | 5 comments

The Periodic Table of Elements that hangs in chemistry classrooms doesn't include a lot of the information about elements that's most important to geologists. Here's one that does.

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Some Details About Transits of Venus

Posted by David Shortt on 2012/05/22 06:02 CDT | 2 comments

The upcoming rare transit of Venus is one step in a long dance among Earth, Venus and the Sun. Transits of Venus follow a peculiar pattern—two transits 8 years apart, then 105.5 years with no transits, then two transits 8 years apart, then 121.5 years with no transits, for a total cycle of 243 years—and thereby hangs a tale.

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Third Martian Anniversary for Mars Climate Sounder

Posted by David Kass on 2012/05/16 11:35 CDT | 2 comments

May 16, 2012 is the third martian anniversary of the start of Mars Climate Sounder (MCS) observations from Mars Reconnaissance Orbiter. MCS started measuring the atmosphere of Mars three Mars years ago, on September 24, 2006. We can now compare the weather and behavior of the atmosphere in three different years, and find the temperature differences to be surprisingly large.

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Earth’s toughest life could survive on Mars

Posted by Mike Malaska on 2012/05/15 06:22 CDT | 6 comments

The surface of Mars is a tough place to survive, but researchers at the German Aerospace Center (DLR) found some lichens and cyanobacteria tough enough to handle those conditions.

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A possible nine-planet system

Posted by Emily Lakdawalla on 2012/04/06 04:06 CDT | 1 comments

Someone on Twitter pointed me to a paper recently posted to ArXiv titled "Evidence for 9 planets in the HD 10180 system." If the (tentative) conclusion holds up, HD 10180 will be the first exoplanetary system known to have more planets than our own.

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What Saturn's moons can tell us about comets (Notes from LPSC 2012)

Posted by Emily Lakdawalla on 2012/04/03 05:20 CDT

My notes on a two-part presentation by collaborators Jim Richardson and David Minton about the sizes of things in the Kuiper belt, a story they told by looking at Saturn's moons. How does that work? What connects Saturn's moons to the Kuiper belt is craters.

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Notes from the Lunar and Planetary Science Conference: Making Cassini's radar images prettier

Posted by Emily Lakdawalla on 2012/03/26 02:12 CDT

One of the more exciting talks last week was given by Antoine Lucas about his work with Oded Aharonson "denoising" Cassini radar images of Titan. Cassini's radar images are superior to the camera photos in revealing fine details and topography on Titan's surface, but they do suffer from a random noise component that makes the pictures look snowy. Antoine and Oded have developed a method for removing much of this noise.

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