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Blogs

Meet our bloggers...CEO, Bill Nye, Emily Lakdawalla, Bruce Betts, Mat Kaplan, Casey Dreier, and a host of expert and entertaining voices from throughout our vast space community.

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Sand Waves in the Desert

Posted by Lori Fenton on 2014/02/21 03:19 CST | 1 comments

I have a pet peeve: the words dune and ripple are often used interchangeably, although they are quite distinct from one another. So what’s the difference between aeolian dunes and ripples? And why should anybody care?

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Curiosity update, sols 540-8: New rules and longer drives

Posted by Emily Lakdawalla on 2014/02/20 05:53 CST | 3 comments

Curiosity has tested a new driving mode -- backwards -- and achieved their longest single-day drive in three months. And they've committed to driving to the spot formerly known as "KMS-9," marking that commitment by giving it a name, "Kimberley." My route maps show you why Curiosity's views will be shifting, and Ken Herkenhoff's blog posts explain the daily activities.

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Predicting Pluto's moons and moondust

Posted by Emily Lakdawalla on 2014/02/19 01:39 CST | 2 comments

Why didn't we discover Pluto's moons until more than a decade after Hubble launched? Mark Showalter helps me answer this question.

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Mission to a Metallic World: A Discovery Proposal to Fly to the Asteroid Psyche

Posted by Van Kane on 2014/02/19 07:45 CST | 1 comments

Imagine flying deep within the asteroid belt to study the most unreachable location in the solar system: the deep core of a terrestrial world.

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Intro Astronomy Class 2: How We Explore Space

Posted by Bruce Betts on 2014/02/18 05:50 CST

Learn easy things to look for in the night sky, and about the electromagnetic spectrum from gamma rays to radio waves in the video of class 2 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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What are Mercury's hollows?

Posted by Emily Lakdawalla on 2014/02/18 09:33 CST | 10 comments

I've been fascinated by Mercury's hollows ever since MESSENGER discovered them. Two recent papers look at where they are found to try to figure out how they form.

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Missions to a Star

Posted by Bill Dunford on 2014/02/17 02:45 CST | 2 comments

Upcoming deep space missions will venture right to the heart of the Solar System.

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Bringing Orion Home: How the U.S. Navy will pluck our future astronauts from the sea

Posted by Jason Davis on 2014/02/14 12:16 CST | 19 comments

When our future astronauts splash down into the Pacific Ocean aboard an Orion capsule, Mike Generale, NASA, and the U.S. Navy will be waiting for them.

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Curiosity Update, sols 534-540: Over Dingo Gap, onto softer sand

Posted by Emily Lakdawalla on 2014/02/13 12:55 CST | 5 comments

After more than two months of very slow driving due to concern about the wheels and time spent choosing whether to enter "Dingo Gap" or not, Curiosity has safely crossed the dune and resumed longer drives, achieving 75 meters and crossing the 5-kilometer mark on sol 540.

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The Two Faces of Phoebe

Posted by Daniel Macháček on 2014/02/13 10:03 CST | 7 comments

Cassini flew past Phoebe on June 11, 2004, on its way to entering Saturn orbit. The flyby was almost perfect but overexposure of some images have prevented color mosaics from being produced. Even though Phoebe's body is gray and dull in color, the absence of color images always provoked me. By using VIMS data, I have now produced color mosaics.

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