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Stories, updates, insights, and original analysis from The Planetary Society.
Finally, some high-quality photos from Chang'e 3!
A pile of Chang'e 3 photos has been released to the Web, and they are much, much better than what I've seen before. They include, for the first time, photos of Earth from the lander.
Polar vortices across the solar system
Earth's polar vortex has been in the American news all week. But we're not the only planet that has one; basically every world that has an atmosphere has a polar vortex. Here are lots of pretty pictures and animations of polar vortices.
Lunar Reconnaissance Orbiter Diviner maps geologic context of Chang'e 3 landing site
The LRO Diviner Lunar Radiometer has been mapping the entire Moon on a nearly continuous basis since July, 2009. The Diviner team has produced maps of the thermal behavior and and a range of derived quantities at Chang’e 3 landing site that are described in this post.
Europa New Frontiers Mission? (Or why I like the Europa Clipper concept even more now)
Europa remains a top priority for a future mission to explore whether it could host life. While the Europa Clipper mission, remains the current front runner, a senior NASA manager has suggested that the agency may look at still lower cost options. Van Kane looks at what those options might be.
Mars Exploration Rovers Update: Mission Nears 10-Year Milestone, Oppy Roves On, We Look Back on 2013
Opportunity wrapped a landmark year in December, sending home more evidence of ancient habitable environments at Endeavour Crater as the Mars Exploration Rovers (MER) mission geared up to celebrate an historic milestone – the completion of 10 years of surface operations on the Red Planet.
The Last Flight of the Original Space Ranger
Remembering the Moon's first extreme close-up.
Looking back at 10 years of imaging by the Mars Exploration Rovers (Video)
As part of the Planetary Society's celebration of the Mars Exploration Rovers' ten years on Mars, Jim Bell and I got together to look back at and tell stories about some of the great images they took.
Pretty picture: Two crescents: New moon, old Venus
A baby Moon and aging Venus crescents are positioned close in the sky today, and lots of people are taking beautiful photos.
Planetary Radio: NEOWISE PI Amy Mainzer
NEOWISE has reawakened to discover many more asteroids and comets. The mission leader thanks the amateur astronomers who follow up on these discoveries.
2013: An OSIRIS-REx Retrospective
2013 is drawing to a close, providing a nice opportunity to reflect on the outgoing year and look back at some of the highlights that we have experienced. Here are my top-20 OSIRIS-REx moments of this past year.
Lunar Reconnaissance Orbiter spies Chang'e 3 and Yutu
As promised, Lunar Reconnaissance Orbiter's sharp eyes spotted the Chang'e 3 lander and Yutu rover on the lunar surface on December 25. The hardware shows up as a few bright pixels throwing long, dark shadows, clearly visible in a before-and-after comparison.
The Mercury Transit You Probably Missed
Planetary transits of the Sun by Mercury and Venus don't come along very often, and when they do we make a big deal of it because, well, it's really cool!
Snow balls in space
I don’t get much snow in southern California, but I do spend a lot of my time thinking about college snowball experiences and about the snowball fights that have made the objects of the outer solar system.
NASA’s New Planetary Mission Woes
NASA’s planetary science program depends on regular missions to solar system bodies to gather data. A combination of budget cuts and previous commitments to develop missions currently in the pipeline means that development of follow on missions may slow to a crawl. Van Kane looks at the current situation and NASA’s plans and then look at options the agency may consider if budgets remain tight into the next decade.
Asteroid Minerva finds its magical weapons in the sky
The International Astronomical Union has chosen the names Aegis and Gorgoneion for the two moons of the asteroid (93) Minerva. We decided to crowd-source the names, catching the attention of the public. Over the following year, I received a lot of emails with suggestions
Cosmos with Cosmos Episode 9: The Lives of the Stars
This episode highlights the other big idea in Cosmos: that we are profoundly connected with the universe around us. Our constituent parts are forged in the bellies of massive stars; we exist through their deaths.
Planetary Radio: Ten Years A Roving: The Mars Exploration Rovers
This week's show looks back over ten years of exploration by Spirit and Opportunity. Writer A.J.S. Rayl recounts the challenges encountered early in the mission, and how an outstanding team triumphed.
Chang'e 3 update with lots of pictures: Yutu begins lunar journey
There was a lot of action on Chang'e 3 over the weekend! I have lots of pictures to share, including the highest-quality one I've seen of the rover on the surface, plus video of the rover making tracks on the Moon and a 3D view of the lander.
Habitability, Taphonomy, and Curiosity's Hunt for Organic Carbon
Lots of people ask questions about how the Curiosity mission, and future missions, will forge ahead to begin with looking for evidence of past life on Mars. There is nothing simple or straightforward about looking for life.
Chang'e 3 and LADEE updates: Yutu active again, LADEE didn't detect landing
Chinese state television broadcast a display of a Chang'e 3 lander image; the Yutu rover is awake; and LADEE reports a surprising non-detection of the Chang'e 3 landing.



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