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Stories, updates, insights, and original analysis from The Planetary Society.
Space Exploration: Leaving the Earth to Understand It
Looking back at Earth from beyond helps to give perspective on our place in the cosmos.
State of NASA Earth Observation
Anna Scott gets us up to speed on NASA's Earth-observing missions nearly 60 years into the satellite age.
New lunar mosaics emerge as Surveyor digitization project continues
A team of scientists at the University of Arizona continue their efforts to extract data from more than 90,000 images captured during NASA's Surveyor program. In the meantime, new first-look images and an animation have been released.
The what-o-sphere? An explainer
Why do we need to slice up atmospheres into classifications like the troposphere, stratosphere, mesosphere, and thermosphere?
The phases of the far side of the Moon
Serbian artist Ivica Stošić used Clementine and Kaguya data to give a glimpse of the phases of the lunar farside.
Atmospheric Waves Awareness: An Explainer
There are two types of atmospheric waves that are critically important on Earth and other planets: gravity waves and planetary waves.
Synthesizing DSCOVR-like Images Using Atmospheric and Geophysical Data
Why does our planet look the way it does from space? How does light interacting with land, clouds, water, snow, ice, gases, and various aerosols all come together? One way to learn the answer is to try and synthesize DSCOVR's view from various
LPSC 2016: The Moon Keeps on Giving
There was no shortage of interesting lunar science talks at last month’s Lunar and Planetary Science Conference. Dr. Ryan Clegg-Watkins highlights some of the interesting results for us.
UPDATED: ESA activates a new old space camera
Inspired by the Mars Webcam on Mars Express, ESA's Cluster mission has turned on a camera on the Cluster spacecraft for the first time since their launch more than 15 years ago. UPDATE: It has now acquired images of Earth.
Fun with a new data set: Chang'e 3 lander and Yutu rover camera data
Here, for the first time in a format easily accessible to the public, are hundreds and hundreds of science-quality images from the Chang'e 3 lander and Yutu rover.
China invites public on-board its robotic missions; and how to download Chang'e data
China plans a busy future in robotic space exploration. Besides the scientific merit, what interests me most about the upcoming Chang'e 4 mission is their intention to get the public involved.
Updates on China's lunar missions
It's official: China plans to send a lander mission to the lunar farside. A relay satellite will launch to the Earth-Moon L2 point in June of 2018, and a lander will follow at the end of 2018. The landing site may be within the south pole-Aitken basin.
Two epic photos of Earth -- but which one is truer?
Two images of Earth taken from different spacecraft at the same time illustrate differences in
December solstice: Viewing Earth's seasonal shifts from space
It's fun to watch the seasons shift from space, and as of this year we have new ways to do that.
Planetary Deep Drill Field Test: Road Trip
The Planetary Deep Drill is being tested in a California gypsum mine. Several Planetary Society staff took a road trip to visit the ongoing Honeybee Robotics test of this prototype robotic drill that could one day drill hundreds of meters into planetary ices.
Hayabusa2 views Earth and the Moon on approach to December 3 flyby
I just love photos of Earth from planetary missions -- especially if they manage to get Earth and Moon in the same shot, as Hayabusa2 did on November 26.
Favorite Astro Plots #3: The rate of lunar cratering
The third entry in my series of blog posts about Favorite Astro Plots contains one of the biggest discoveries from the Apollo program -- as well as one of the biggest questions in planetary science. The chart was nominated by planetary scientist Barbara Cohen. It has to do with the ages of surfaces on the Moon.
Surveyor Digitization Project Hints at Long-Lost Lunar Treasures
A project to digitize more than 90,000 images taken by NASA’s five Surveyor spacecraft in the 1960s has revealed early hints of never-before-seen treasures captured by America’s first robotic lunar landers.
Two JAXA mission updates: Akatsuki Venus orbit entry and PROCYON Earth flyby coming up!
Akatsuki is finally approaching its second attempt to enter Venus orbit, on December 7; let's all wish JAXA the best of luck! And PROCYON, whose ion engines have failed, is still an otherwise perfectly functional spacecraft that is taking photos of Earth and the Moon as it approaches for a flyby.
A Day in the Solar System: 28 October 2015
On October 28th, the Cassini spacecraft flew through the geyser plume of Saturn's moon Enceladus. But Cassini was not the only spacecraft operating in the solar system that day.



Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Small Bodies