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Triple asteroid 1994 CC rotation animation

Posted by Emily Lakdawalla on 2009/08/06 10:39 CDT

From the "just plain cool" department. I love animations of planetary images and I love radar images of asteroids -- so this animation is doubly cool.

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Cassini RADAR continues to gaze at Titan

Posted by Jani Radebaugh on 2009/07/27 07:08 CDT

The Cassini spacecraft made its 59th flyby of Titan, Saturn's largest moon, on Friday, July 24, and in the last few hours we have received images from the RADAR instrument in SAR (Synthetic Aperture Radar) mode.

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Gravity's Bow

Posted by Timothy Reed on 2009/06/15 03:56 CDT

Timothy Reed explains how optical telescopes are tested for gravity sag, and the methods used to counteract or compensate for it.

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Canto III: Hints of Equinox

Posted by David Seal on 2009/06/04 06:31 CDT

Saturn is rapidly approaching equinox, where the Sun passes through the ring plane (south-to-north, i.e. the northern vernal equinox), and its ring system (i.e. its great now-gloomy poorly-lit circles of large blocks of water ice) is starting to show some really interesting behavior.

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Atlantis and Crew Return Safely to Earth after Rejuvenating Hubble

Posted by Ken Kremer on 2009/05/25 03:57 CDT

Space Shuttle Atlantis and her crew of 7 astronauts glided in to a smooth and triumphant touchdown today, Sunday, May 24.

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Farewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to Land

Posted by Ken Kremer on 2009/05/22 05:13 CDT

Farewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to Land

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An Auspicious Week for Astronomy

Posted by Mark Adler on 2009/05/11 11:54 CDT | 1 comments

On Monday, if all goes well, we will launch the Space Shuttle to rejuvenate one the greatest scientific missions launched on or off the Earth: the Hubble Space Telescope.

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Fly me to the Moon...

Posted by Jim Bell on 2009/05/04 12:46 CDT

Jim Bell describes his proposal to join the Lunar Reconnaissance Orbiter Cameras science team.

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Mapping Mars, now and in history

Posted by Emily Lakdawalla on 2009/02/26 04:23 CST

Planetary cartographer Phil Stooke has been working on a cool project to compose and compare maps of Mars that show how we saw the planet throughout the Space Age.

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Looks like the Dawn flyby of Mars went well

Posted by Emily Lakdawalla on 2009/02/21 11:10 CST

Looks like the Dawn flyby of Mars went well: here' a photo of Mars taken by Dawn near its closest approach to Mars during its February 17 flyby.

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What do we know about Uranus' moons? Part 2

Posted by Emily Lakdawalla on 2009/02/19 06:07 CST

Here is every single image of the last two moons discovered prior to the Voyager 2 encounter, Titania and Umbriel.

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Treasures from Mars' ancient history

Posted by Emily Lakdawalla on 2009/01/28 12:06 CST

In which I discover Earl Slipher's Mars: The Photographic Story.

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What do we know about Uranus' moons? Part 1

Posted by Emily Lakdawalla on 2009/01/20 06:26 CST

I got an urge to dive in to the Voyager image archives and see what exactly we have here on Earth to base our understanding of the Uranian moons on.

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A Moon Among Stars

Posted by Emily Lakdawalla on 2008/12/31 06:17 CST

A very pretty picture of a moon among stars. Happy 2009, everyone!

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Opportunity's got a long road ahead

Posted by Emily Lakdawalla on 2008/09/19 05:03 CDT

Mars Exploration Rover principal investigator Steve Squyres announced on National Public Radio's Science Friday show the next goal for Opportunity, and it's a long, long, long way away: a huge crater about 12 kilometers southeast of its current location, which the team is referring to internally as "Endeavour."

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A bit of fun with Mars Express images of Phobos

Posted by Emily Lakdawalla on 2008/04/16 05:59 CDT

I recently found the focus to work on a big project: namely, downloading and examining every Mars Express High Resolution Stereo Camera image of Mars' two moons, Phobos and Deimos.

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Showing off Saturn's moons

Posted by Emily Lakdawalla on 2008/02/19 04:40 CST

There was a press release from the Cassini mission today about a pile of papers (14 of them!) being published in the journal Icarus about Saturn's icy moons. I haven't had time to read more than the overview article yet, but I wanted to come up with a graphic for an overview of Saturn's moons, and I couldn't resist delving into the massive database of Cassini images to produce something new

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Teeny little Bigfoot on Mars

Posted by Emily Lakdawalla on 2008/01/23 01:41 CST | 2 comments

The story of a Sasquatch-shaped rock visible in a recent panorama from Spirit is getting a lot of play in the mainstream media, but fortunately, it's not being taken very seriously. (My favorite take on this picture is the lead from the Times Online story about it: "Is it a rock? A trick of Martian light on the eye? Or Osama Bin Laden waving from his barren hideout 300 million miles from planet Earth?")

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Rosetta Was Here

Posted by Emily Lakdawalla on 2007/02/25 10:27 CST

This amazing view was captured by the CIVA camera on Rosetta's Philae lander just four minutes before its closest approach to Mars on February 25, 2007. The spacecraft was only 1,000 kilometers above the planet.

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A fun picture for holiday travel

Posted by Emily Lakdawalla on 2005/11/22 02:37 CST

A fun NASA explainer just crossed my email inbox and I thought I'd share it.

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