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Stories, updates, insights, and original analysis from The Planetary Society.
Field Report From Mars: Sol 4482 - September 2, 2016
Opportunity is about to leave Marathon Valley for good and head south into the next valley, marking the beginning of the current extended mission plan.
Philae spotted on the surface of comet Churyumov-Gerasimenko
Ever since its landing, Philae has been elusive. It went silent just three days later and never returned any more science data, though it made brief contact with the orbiter last summer. Now, just a month until the planned end of the Rosetta mission, the orbiter has finally located the lander in a stunning high-resolution view of the surface.
Mars Exploration Rovers Update: Opportunity Gets in the Groove, Wraps Science Marathon Valley
Opportunity got in the groove at Endeavour Crater in August finishing the last of her science assignments in Marathon Valley.
Juno's instruments return riches from first perijove
On August 27, Juno soared across Jupiter's cloud tops from pole to pole, with all instruments operating. NASA posted some terrific first results from several of the instruments today. And the JunoCam team released all 28 raw images taken during the close encounter.
Dawn Journal: Diving Low
Following the conclusion of Dawn's ambitious 8.8-year prime mission on June 30, the spacecraft has been gathering a wealth of data with all sensors in its extended mission as it orbits closer to Ceres than the International Space Station is to Earth.
Will Juno’s Instruments Observe the Moons of Jupiter?
It is not easy to observe Jupiter’s moons as more than points of light with Juno, because Juno will never get very close to any of the moons, but as its orbit shifts there will be opportunities to collect data on some of the moons.
Juno's first Jupiter close approach successful; best JunoCam images yet to come
NASA announced this afternoon that Juno passed through its first perijove since entering orbit successfully, with science instruments operating all the way. This is a huge relief, given all the unknowns about the effects of Jupiter's nasty radiation environment on its brand-new orbiter.
Proxima Centauri b: Have we just found Earth’s cousin right on our doorstep?
What began as a tantalizing rumor has just become an astonishing fact. Today a group of thirty-one scientists announced the discovery of a terrestrial exoplanet orbiting Proxima Centauri. The discovery of this planet, Proxima Centauri b, is a huge breakthrough not just for astronomers but for all of us. Here’s why.
How big is that butte?
Whenever I share images from Curiosity, among the most common questions I’m asked is “what is the scale of this image?” With help from imaging enthusiast Seán Doran, I can answer that question for some of the Murray buttes.
JunoCam "Marble Movie" data available
Since a few days after entering orbit, JunoCam has been taking photos of Jupiter every fifteen minutes, accumulating a trove of data that can be assembled into a movie of the planet.
Gullies on Mars: Wet or Dry (Ice)?
Martian gullies were in the spotlight last week thanks to a NASA press release stating they were
Juno’s other ‘cameras’
Juno’s science goals are to understand the origin and interior of Jupiter, focusing specifically on its atmosphere and magnetic field. Cameras can help answer some of these questions.
Curiosity update, sols 1373-1427: Driving up to Murray buttes, drilling at Marimba
Curiosity has now covered most of the flat ground that lay between the Naukluft plateau and the Murray buttes. The mission took only 11 days to complete drilling work at Marimba, despite a recurrence of a problematic short in the drill. The rover is ready to drive in among the buttes, shooting spectacular photos along the way.
Yutu is NOT dead (probably)
Despite what you may have read on other websites last week, China's Yutu lunar rover is probably still functional on the surface of the Moon.
JunoCam raw data from the Juno approach movie
As it approached Jupiter from June 12 to 29, JunoCam captured an animation of the major moons orbiting the planet. The mission released a processed version of the animation on the day of orbit insertion, but took a few weeks to release the raw image data. I've prepared a page hosting all the raw data, and share a few processed versions.
Half the Park is After Dark: Stargazers Celebrate U.S. National Parks Centennial
On August 25th, 2016, the U.S. National Park Service is celebrating its Centennial. That’s 100 years of protecting the lands and the night skies so that people from around the world and all walks of life can come and see the stars!
Mars Exploration Rovers Update: Opportunity Nears End of Marathon Valley Tour, Team Celebrates 40th Anniversary of Viking
Despite the intensifying rancor and ugliness of the U.S. Presidential campaigns on Earth, as the spring Sun shined down on Meridiani Planum in July, all was right with the world at Endeavour Crater.
Dawn Journal: Staying at Ceres
The official end of Dawn's prime mission was June 30, but the valiant adventurer began its
Field Report From Mars: Sol 4410 - June 20, 2016
Opportunity is finishing up its activities in Marathon Valley, getting ready to hit the road again.
What MAVEN Learned and What It Will Do Next
The head of NASA's MAVEN mission, Bruce Jakosky, describes MAVEN's accomplishments during the primary mission, and previews the spacecraft's extended mission.



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