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Latest Guest Blog Posts

How Arecibo Observatory Transmits to the ISEE-3 Spacecraft

Posted by Alessondra Springmann on 2014/07/16 03:51 CDT | 1 comment

Talking to spacecraft is a normal occurrence at Arecibo Observatory, but sometimes the nuts and bolts are a little unconventional.

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Trundling Across the Moon

Posted by Mark Robinson on 2014/07/11 12:01 CDT | 1 comment

High resolution images from the Lunar Reconnaissance Orbiter Camera detail the 1973 path of the Soviet rover Lunokhod 2.

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Voyager 3 Project

Posted by Peter Rosén on 2014/07/08 02:15 CDT | 3 comments

In 1979, the Voyager 1 probe took a stunning series of images on its final approach to Jupiter. Thirty-five years later, almost to the day, a group of seven Swedish amateur astronomers set out to replicate this odyssey, but with images taken with their own ground-based telescopes.

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The Habitable Zone of Inhabited Planets

Posted by Jaime Green on 2014/07/07 03:14 CDT | 10 comments

A team of Colombian researchers are arguing for a new refinement to the idea of the habitable zone that takes the presence of life itself into account.

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Mars Exploration Rovers Update: Opportunity Nears End of Murray Ridge, Pillinger Point Christened

Posted by A.J.S. Rayl on 2014/07/03 03:44 CDT | 6 comments

Opportunity got off to a bumpy start in June, but the Mars Exploration Rover (MER) mission pressed on, continuing the exploration of Murray Ridge at the western rim of Endeavour Crater.

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Pretty pictures of the Cosmos: Interacting galaxies

Posted by Adam Block on 2014/07/02 10:27 CDT

Award-winning astrophotographer Adam Block showcases some of his stunning images of what happens when galaxies get a little too close to each other.

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Dawn Journal: HAMO at Ceres

Posted by Marc Rayman on 2014/07/01 11:34 CDT | 9 comments

Dawn's chief engineer and mission director Marc Rayman gives an overview of the plan for the penultimate orbital phase at Ceres, the “high altitude mapping orbit” (HAMO).

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Field Report From Mars: Sol 3705 – June 27, 2014

Posted by Larry Crumpler on 2014/06/30 07:30 CDT

Opportunity has left the winter haven and is still driving south along the rim of Endeavour crater, currently exploring an outcrop a few meters from crater rim.

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Our Pathway to Exploration Should Start with the Asteroid Redirect Mission

Posted by Louis D. Friedman and Tom Jones on 2014/06/30 06:01 CDT | 51 comments

Despite its rejection by the NRC Committee, we argue that the Asteroid Redirect Mission (ARM) is an affordable and logical first step in such a sequence. ARM is not only consistent with the NRC Committee’s own principles, but is also the only near- term initiative that can shape their recommendations into a sustainable human space exploration program. ARM would launch U.S. explorers into deep space beyond the Moon, and fits logically into an exploration program aimed at Mars.

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Of Rings and Resolution

Posted by Bill Dunford on 2014/06/23 09:36 CDT | 3 comments

Seeing Saturn before and after Cassini.

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