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Stories, updates, insights, and original analysis from The Planetary Society.
One Day on Mars
A single day's observations take us from orbital overviews all the way down to ground truth.
Chang'e 3 update: Both rover and lander still alive at the end of their eighth lunar day
Despite the fact that it hasn't moved for 6 months, the plucky Yutu rover on the Moon is still alive. Its signal is periodically detected by amateur radio astronomers, most recently on July 19. A story posted today by the Chinese state news agency offers a new hypothesis to explain the failure of the rover's mobility systems.
Mars and Europa: Contrasts in Mission Planning
Several announcements for proposed missions to Mars and on the planning for a NASA return to Europa that highlight the contrasts in planning missions for these two high priority destinations.
Capitol Hill Responds to the Lure of Europa
A standing-room only crowd learned the lure of Europa, the moon of Jupiter with more liquid water than the Earth, at a special Planetary Society event on capitol hill.
New Horizons to take new photos of Pluto and Charon, beginning optical navigation campaign
Technically, Pluto science observations don't begin for New Horizons until 2015, but the spacecraft will take a series of photos of Pluto and Charon from July 20 to 27 as it begins the first of four optical navigation campaigns.
A right old comet kerfuffle…
A European space enthusiast, children's author, and volunteer astronomy outreach worker asks for more images from Rosetta.
I've been asteroided! (274860) Emilylakdawalla
What a great piece of news to receive upon returning home from vacation! There is now a small piece of the solar system named for me: asteroid 274860 has been formally named
Quick Rosetta update: Churyumov-Gerasimenko is a contact binary!
I could not wait to post these amazing new images of comet Churymov-Gerasimenko from Rosetta. The nucleus of the comet is clearly a contact binary -- two smaller (and unequally sized object) in close contact.
Trundling Across the Moon
High resolution images from the Lunar Reconnaissance Orbiter Camera detail the 1973 path of the Soviet rover Lunokhod 2.
Voyager 3 Project
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.
The Habitable Zone of Inhabited Planets
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.
On the masses and motions of mini-moons: Pandora's not a "shepherd," but Prometheus still is
As Cassini celebrates 10 years at Saturn, we're beginning to see its long-term observations of Saturnian moons bear fruit. A surprising new result: While Prometheus exerts control over the F ring and Atlas, Pandora -- long thought to be a shepherd of the F ring -- does not.
Rosetta’s comet is starting to take shape
A new animation of 67P/Churyumov-Gerasimenko captured by the Rosetta spacecraft shows the comet rotating.
Mars Exploration Rovers Update: Opportunity Nears End of Murray Ridge, Pillinger Point Christened
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.
Pretty Pictures of the Cosmos: Interacting Galaxies
Award-winning astrophotographer Adam Block showcases some of his stunning images of what happens when galaxies get a little too close to each other.
Field Report From Mars: Sol 3705 – June 27, 2014
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.
A close look at Saturn's closest moons
A new composite image of the eight named moons that orbit closest to Saturn, and a list of all the best Cassini observations of these moons.
Curiosity update: One Mars Year! Sols 662-670
On Monday JPL put out a press release marking one year since Curiosity landed -- one Mars year, that is! There was a new version of the Kimberley self-portrait, and a video update on wheel wear testing. While we've been celebrating on Earth, Curiosity has been driving, driving, driving, on a new
Skimming the inner planets: Updates on MESSENGER and Venus Express
The two spacecraft currently orbiting the two innermost planets are both flying low in their orbits in the final phases of their missions. MESSENGER just performed a rocket burn to raise its orbit slightly, while Venus Express did the opposite.
Of Rings and Resolution
Seeing Saturn before and after Cassini.



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