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LPSC 2013: Sedimentary stratigraphy with Curiosity and Opportunity

Posted by Emily Lakdawalla on 2013/03/20 04:19 CDT | 4 comments

A mind-boggling quantity of information is being presented at the Lunar and Planetary Science Conference. In my first report from the meeting, I try to make sense of the Curiosity and Opportunity sessions.

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Comet PANSTARRS from the other side of the Sun!

Posted by Karl Battams on 2013/03/14 05:21 CDT | 8 comments

Comet PANSTARRS is delighting northern hemisphere viewers right now. But it's also big, bright, and beautiful to the STEREO spacecraft.

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Yes, it was once a Martian lake: Curiosity has been sent to the right place

Posted by Emily Lakdawalla on 2013/03/12 05:36 CDT | 7 comments

The news from the Curiosity mission today is this: Curiosity has found, at the site called John Klein, a rock that contains evidence for a past environment that would have been suitable for Earth-like microorganisms.

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Instruments for the JUICE Jovian Mission

Posted by Van Kane on 2013/03/07 12:20 CST | 6 comments

The European Space Agency (ESA) announced the list of instruments selected for its JUICE mission to explore the Jovian system for three years starting in the 2030 following a 2022 launch.

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Meteor showers on Titan: an example of why Twitter is awesome for scientists and the public

Posted by Emily Lakdawalla on 2013/03/06 12:48 CST | 5 comments

I use a variety of social networking tools to perform my job, but there's one that's more important and valuable to me than all the rest combined: Twitter. Yesterday afternoon there was a discussion on Twitter that exemplifies its value and fun: are there visible meteors on Titan?

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Sea Salt

Posted by Mike Brown on 2013/03/06 10:41 CST | 3 comments

Ever wonder what it would taste like if you could lick the icy surface of Jupiter’s Europa? The answer may be that it would taste a lot like that last mouthful of water that you accidentally drank when you were swimming at the beach on your last vacation.

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Will comet Siding Spring make a meteor shower on Mars?

Posted by Emily Lakdawalla on 2013/03/05 04:34 CST | 6 comments

JPL's Solar System Dynamics group shows that there is still a possibility that C/2013 A1 (Siding Spring) could hit Mars. But the uncertainty in its position at that time is large -- the closest approach could happen an hour earlier, or an hour later -- so we're a long way from knowing yet whether it will or (more likely) won't impact.

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Webcast Tonight! Planetary Scientist and Society President Jim Bell
Watch It Live or Later On Demand

Posted by Mat Kaplan on 2013/02/20 07:59 CST

Professor Bell's topic is "Exploring Mars, the Moon, Asteroids, and Comets with Rovers and Landers," and there is no one better to talk about this subject.

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Why don't we have any photos of asteroid 2012 DA14 if it came so close?

Posted by Emily Lakdawalla on 2013/02/19 03:13 CST | 2 comments

A frequently-asked question last week was: if asteroid 2012 DA14 is coming so close to Earth, why hasn't anyone taken any pictures of it? Now that 2012 DA14 has whizzed past us, we do finally have some radar pictures of it, but they still may not satisfy everyone.

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Observing 2012 DA14

Posted by Edward Gomez on 2013/02/18 05:14 CST | 4 comments

Mostly the Universe stays unchanged for hundreds, thousands or even millions of years. There are some cases however when some things change really rapidly. Recently I observed one of these rapidly changing, transient phenomena, as asteroid called 2012 DA14. I work for Las Cumbres Observatory and we have been trying to observe this asteroid since 5 February.

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When will New Horizons have better views of Pluto than Hubble does?

Posted by Emily Lakdawalla on 2013/02/18 04:22 CST | 7 comments

Last week, I posted an explainer on why Hubble's images of galaxies show so much more detail than its images of Pluto. Then I set you all a homework problem: when will New Horizons be able to see Pluto better than Hubble does? Here's the answer.

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Why can Hubble get detailed views of distant galaxies but not of Pluto?

Posted by Emily Lakdawalla on 2013/02/14 12:37 CST | 18 comments

How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? I get asked this question, or variations of it, a lot. Here's an explainer.

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Planetary Society Hangout Thursday Feb 7th at 12:00 PST/20:00 UT: Snow and Ice on Mars with Paul Hayne

Posted by Casey Dreier on 2013/02/07 02:55 CST | 3 comments

Join us this week as we feature our guest, Dr. Paul Hayne from JPL. Dr. Hayne studies snow and ice on Mars, extreme temperatures of the Moon, and is on the Cassini science team. He also founded the group Young Scientists for Planetary Exploration to help organize early-career scientists to be aware of the politics of space.

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My Free Online College Intro Astronomy Class Starts Today
Introduction to Planetary Science and Astronomy

Posted by Bruce Betts on 2013/02/06 02:03 CST | 5 comments

Bruce Betts is teaching online Introduction to Planetary Science and Astronomy at California State University Dominguez Hill again in 2013. You can watch live or archived.

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Guide to Asteroid 2012 DA14 Super Close Approach

Posted by Bruce Betts on 2013/02/04 01:46 CST | 17 comments

The 45 meter asteroid 2012 DA14 will pass closer to Earth than geostationary satellites on Feb. 15, 2013. Learn about the asteroid and what to expect from the close approach.

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"Sand" means something different to me than it does to you, probably

Posted by Emily Lakdawalla on 2013/01/24 01:28 CST | 2 comments

I had one of those "A-ha" moments last week where I suddenly realized that I had run afoul of a common problem in science communication: when the words I'm using mean something different to me than they do to almost everyone I'm talking to. The confusing word of the week: "sand."

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Planetary Society Hangout: Jan 24th, 2013 - Hunting Asteroids with Gary Hug
Thursday at noon PST/3pm EST/20:00 UT

Posted by Casey Dreier on 2013/01/24 12:00 CST

Gary Hug is an asteroid hunter. He scans the skies every night looking for new near-Earth objects and refining orbital measurements for existing ones. Join Casey Dreier and Dr. Bruce Betts as they interview Gary Hug about his work and his recent discovery of a new NEO on January 7th.

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Introducing PlanetFour

Posted by Ganna (Anya) Portyankina on 2013/01/23 11:51 CST | 3 comments

The Mars I study is really active; the surface constantly changes. We have collected a lot of image data about changing seasonal features near the south pole. There is so much that we can't analyze all of it on our own. We need your help, through a new Zooniverse project named PlanetFour.

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Curiosity update, sol 157: Glenelg isn't just a test site anymore; it's a scientific "candy store"

Posted by Emily Lakdawalla on 2013/01/15 05:30 CST | 5 comments

The Curiosity mission held a press briefing this morning for the first time since the American Geophysical Union meeting, and it was jam-packed with science. The biggest piece of news is this: it was worth it, scientifically, to go to Glenelg first, before heading to the mountain.

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The raw data behind an Earth-like exoplanet

Posted by Jason Davis on 2013/01/11 03:29 CST | 14 comments

Taking a closer look at KOI 172.02, a super-Earth exoplanet sitting in its solar system's habitable zone.

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