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Latest Guest Blog Posts

Mars Exploration Rovers Update: Opportunity Logs Sol 4000, Digs Spirit of St. Louis Crater

Posted by A.J.S. Rayl on 2015/05/05 09:20 CDT | 2 comments

After investigating some flat, light and dark toned rocks around Spirit of St. Louis Crater in April, Opportunity chalked up another milestone achievement – the 4000th sol or Martian day of surface operations.

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Mars Exploration Rovers Special Update: MERathon Celebrates Opportunity's Marathon

Posted by A.J.S. Rayl on 2015/05/01 10:06 CDT

MER mission ops team members joined other engineers and scientists, some who previously worked on the MER mission, to take on the challenge of a relay marathon to celebrate Opportunity's milestone achievement.

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Dawn Journal: Getting Down to Science at Ceres

Posted by Marc Rayman on 2015/05/01 03:02 CDT | 14 comments

Dawn Mission Director and Chief Engineer Marc Rayman gives a status update on the mission, having finally arrived at dwarf planet Ceres.

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Looking Down On Jupiter's North Pole

Posted by Ted Stryk on 2015/04/28 10:12 CDT | 3 comments

Ted Stryk shares the most direct view of a Jovian pole ever captured by a spacecraft.

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New Horizons One Earth Message

Posted by Mark Washburn on 2015/04/24 02:08 CDT | 3 comments

The One Earth Message Project is going to send a message to the stars, and we invite members of the Planetary Society to join us in this historic endeavor.

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Can nuclear waste help humanity reach for the stars?

Posted by Tim Tinsley on 2015/04/23 04:07 CDT | 3 comments

With the shortage of plutonium-238 to power space missions, Europe has decided to focus on an accessible alternative material that could power future spacecraft: americium-241.

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Development of the OSIRIS-REx Sampling System: TAGSAM and the SRC

Posted by Dante Lauretta on 2015/04/21 04:55 CDT

The OSIRIS-REx team has been busy assembling and testing the Touch-and-Go Sample Acquisition Mechanism (TAGSAM) and the Sample Return Capsule (SRC).

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What Color Does the Internet Think Pluto Is?

Posted by Alex Parker on 2015/04/20 03:08 CDT | 2 comments

Astronomers have known for a long time that Pluto’s surface is reddish, so where did the common idea that Pluto is blue come from?

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The Cosmic Microwave Oven Background

Posted by David Wilson on 2015/04/17 03:03 CDT | 2 comments

Over the past couple of decades the Parkes Radio Telescope in Australia has been picking up two types of mysterious signals, each lasting just a few milliseconds. The source of one of these signals may have finally been found—and an unexpected source at that.

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Pretty Pictures of the Cosmos: Life and Death in the Universe

Posted by Adam Block on 2015/04/17 11:28 CDT

Astrophotographer Adam Block brings us images showcasing the evolutionary cycles in our universe.

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