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Stories, updates, insights, and original analysis from The Planetary Society.
Why We Don't Know When the Europa Mission Will Launch
NASA has been vague about when the new mission to Europa will launch. There's a reason for that, and it's not just orbital mechanics.
Here Are the Science Instruments NASA Will Use to Explore Europa
NASA just announced the science instruments that will be used to understand the enigmatic ocean moon of Europa. The mission is planned to launch sometime in the early 2020s.
Real-time sunset on Mars
Pause your life for six minutes and watch the Sun set....on Mars. Thank you, Glen Nagle, for this awe-inspiring simulation based on Curiosity's sol 956 sunset images.
Tons of fun with the latest Ceres image releases from Dawn
Fantastic new images of Ceres continue to spill out of the Dawn mission, and armchair scientists all over the world are zooming into them, exploring them, and trying to solve the puzzles that they contain.
Rover eyes on rock layers on Mars
Digging in to mission image archives yields similar images of layered Martian rocks from very different places.
Two Months from Pluto!
Two months. Eight and half weeks. 58 days. It's a concept almost too difficult to grasp: we are on Pluto's doorstep.
Unseen latitudes of comet Churyumov-Gerasimenko -- revealed!
A recent Rosetta image has revealed a good part of the comet's previously hidden southern terrain to the public for the first time.
New Horizons spots Kerberos and Styx
New Horizons has now spotted every one of Pluto's satellites...all the ones we know about, that is.
Due to ion engine failure, PROCYON will not fly by an asteroid
PROCYON, the mini-satellite launched with Hayabusa2, will not be able to achieve its planned asteroid flyby due to the failure of its ion engine.
Mars Plans Advance (and Occasionally Fade)
In the last two months, there has been significant news about the European-Russian 2018 mission and about NASA’s 2020 rover. NASA also has announced that it would like to send a new orbiter to the Red Planet in the early 2020s.
OSIRIS-REx – Seeking Answers to the Sweet Mystery of Life
The nature of the origin of life is a topic that has engaged people since ancient times. The samples to be collected by OSIRIS-REx, returned to the Earth in 2023 and archived for decades beyond that, may indeed hide the secrets to the origin of life.
Curiosity update, sols 949-976: Scenic road trip and a diversion to Logan's Run
Curiosity is finally on the road again! And she's never taken a more scenic route than this. Her path to Mount Sharp is taking her to the west and south, across sandy swales between rocky rises.
Sunset on Mars
Long before Curiosity's landing, the description of the color camera made me dream: I imagined what wonderful pictures we could get of sunsets and sunrises on Mars. They finally came on sol 956, the 15th of April, 2015.
A week's worth of "RC3" images from Dawn at Ceres
Now that Dawn is in its science orbit at Ceres, the mission has been releasing new images every weekday!
Mars Exploration Rovers Update: Opportunity Logs Sol 4000, Digs Spirit of St. Louis Crater
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.
Farewell, MESSENGER
There is one less robot exploring the solar system today. MESSENGER, which has orbited Mercury for four years, finally ran out of fuel and crashed into the planet at 17:26 UT on Thursday, April 30, 2015.
Dawn Journal: Getting Down to Science at Ceres
Dawn Mission Director and Chief Engineer Marc Rayman gives a status update on the mission, having finally arrived at dwarf planet Ceres.
Mars Exploration Rovers Special Update: MERathon Celebrates Opportunity's Marathon
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.
More than 1000 Rosetta NavCam images released!
Today the European Space Agency released a ton of NavCam images, taken as the spacecraft approached and then entered orbit at the comet.
New Horizons sees surface features on Pluto, begins raw image release
Today the New Horizons team released a new animation of images taken on approach to Pluto. The animation clearly shows how Pluto wobbles around the Pluto-Charon barycenter. It also shows something more exciting to the scientists: variations in brightness across the surface of Pluto. They also began releasing raw images to the Internet.



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