All
All
Stories, updates, insights, and original analysis from The Planetary Society.
Pretty picture: Mimas scuttles behind Dione
Images from the Cassini spacecraft's flyby of Dione.
Phobos-Grunt: all but over, a letter from IKI
A letter sent by Lev Zelenyi, director of the Russian Space Research Institute (IKI) to participants in the Phobos-Soil project about the mission's failure.
Mariner 9 approaching Mars: a movie!
In celebration of the 40th anniversary of Mariner 9's November 13, 1971 arrival at Mars, Daniel Macháček has produced a morphed animation of the images that Mars' first orbiter took while approaching the planet.
Notes on Dawn at Vesta from the 2011 American Geophysical Union meeting
A report on the press briefing and talks from the Fall 2011 American Geophyisical Union meeting about the data on Vesta collected so far by Dawn.
Mars Exploration Rovers Special Update: Opportunity Finds Best Evidence Yet for Liquid Water in Gypsum at Homestake
Mars Exploration Rover Opportunity has discovered gypsum and its
Good news, everyone: We're getting as good at space weather forecasts as we are at Earth weather forecasts
Emily reports from the Fall 2011 American Geophyisical Union meeting about advancements in space weather prediction.
Sungrazing with Lovejoy's Comet
Observations of the newly sighted Kreutz sungrazer comet C/2011 W3 (Lovejoy) from the ground and from SOHO (a joint NASA/ESA satellite) and STEREO (NASA's Solar Terrestrial Relations Observatory).
From the 2011 Fall Meeting of the American Geophysical Union (AGU): Voyager 1 at the edge of the solar system
A report on a press briefing about Voyager 1 at the Fall 2011 American Geophyisical Union meeting. The spacecraft has entered a new region between our solar system and interstellar space, which scientists are calling the stagnation region.
Curiosity, from a 1935 perspective
With a new rover, Curiosity, on its way to Mars, Jason Davis takes a look at what we knew - or thought we knew - about the planet back in 1935.
ESA is ending ground station support for Phobos-Grunt
After modifying two antennas and attempting to send commands to Phobos-Grunt for weeks without success, ESA has made the decision to stop tracking support.
Reviews of space-themed books for kids ages 7 and up
OK, this is my last pile of book reviews for this year: a collection of good books for kids older than mine.
First-ever high-resolution Synthetic Aperture Radar image of Enceladus
On the November 6, 2011 flyby of Enceladus -- the third such flyby in just a few weeks -- the Cassini mission elected to take a SAR swath instead of using the optical instruments for once. So here it is: the first-ever SAR swath on Enceladus. In fact, the only other places we've ever done SAR imaging are Earth, the Moon, Venus, Iapetus, and Titan.
One-astronaut game of baseball in the International Space Station
A fun video of Japanese astronaut Satoshi Furukawa playing baseball aboard the ISS.
At last, I've finished my scale solar system presentation slide/poster
A presentation providing a correctly scaled, reasonably correctly colored view of the largest bodies in the solar system is made available for use by teachers, professors, and informal educators.
Dawn Journal: Riding gravitational currents to LAMO
In this update on the Dawn mission, project system engineer Marc Rayman reports that the probe is headed for its low altitude mapping orbit (LAMO), where it will focus on making a census of the atomic constituents and on mapping the gravity field in order to determine Vesta's interior structure.
Reviews of space-themed books & products for young children
As I do every year, I've collected a bunch of new (or relatively new) books and other products on space themes for children.
Mars Exploration Rovers Update:Opportunity Crunches Homestake, Scouts Locales for Winter
Opportunity roved toward the end of its eighth year of exploration on the Red Planet and chalking up yet another
What's up in the solar system in December 2011
What's going on with our planetary explorers in December?
Bye-bye, Curiosity
A few fortunate (and forward-thinking) skywatchers looked upward in the hours after Curiosity's launch and were able to see the spacecraft leaving Earth.
The 70-meter dishes of the Deep Space Network
I was inspired by my recent trip to Goldstone to put together this poster showing all three of the great 70-meter dishes of the Deep Space Network. There's one at each of the three complexes, at Goldstone, at Robledo (near Madrid, Spain), and at Tidbinbilla (near Canberra, Australia).



Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Small Bodies