Explore
Major Moons
We have completed reconnaissance missions to all eight of the planets, and will soon perform surveys of two dwarf planets, Ceres and Pluto. Among the most compelling targets for future flagship missions are the solar system's moons. Can we use Phobos as a base from which to tele-operate Mars missions? Is there prebiotic chemistry or even life within the buried oceans of Europa, Ganymede, or Enceladus, or in the methane-ethane rivers and lakes on Titan? What could we learn about the Kuiper belt by studying Neptune's captured moon Triton? What could human explorers do on our own Moon using technology developed over the last 40 years?
These questions drive interest in future missions among scientists, but it's an uphill battle to sell decisionmakers on the value of expensive missions to objects that are "only" moons. For us to capitalize on the successes of our reconnaissance missions, it is essential to educate the public about the reasons that other worlds' moons are so exciting, and that they are worlds every bit as worthy of study as the planets.
Recent Blog Entries about our Moon, Phobos, Europa, Ganymede, Enceladus, Titan, and Triton
Enceladus: A problem of contrast
Posted by Emily Lakdawalla on 2013/01/30 07:00 CST | 6 comments
Time for my quarterly foray into the Cassini archival science data! The very first image I downloaded from the January 1, 2013 data release presented an interesting challenge to my image processing skill. I'll show you the pretty picture of Enceladus and then explain how I processed it.
Voyager 1 revisited: Io and Europa transiting Jupiter
Posted by Björn Jónsson on 2013/01/22 06:04 CST
What is the highest resolution global Jupiter mosaic that includes a satellite transit that can be assembled from Voyager images? Satellite transits are especially beautiful when the resolution is high enough for some details to be visible on the satellites so I decided to check this. And I was remarkably lucky.
Posted by Emily Lakdawalla on 2013/01/14 06:31 CST | 4 comments
Video views shot by two doomed spacecraft take us flying across the Moon.
Posted by Emily Lakdawalla on 2012/12/19 10:06 CST | 3 comments
Join us for our weekly Google+ Hangout Thursday at noon PT / 2000 UT. This week, I'm excited to have as a guest Sarah Hörst. Sarah is a postdoc at the University of Colorado whose current line of research involves experimental work on the complex atmospheric chemistry of Titan. She is also applying to be an astronaut!
Forty years after Apollo 17's final footsteps
Posted by Andrew Chaikin on 2012/12/14 01:48 CST | 2 comments
Today marks the 40th anniversary of the last human footsteps on the Moon. In my latest video I look back at Apollo 17 and explain why I believe the Moon is the solar system's "jewel in the crown," beckoning us to return.
Posted by Emily Lakdawalla on 2012/12/13 05:34 CST | 2 comments
The twin GRAIL spacecraft are nearly out of fuel, and are being directed to a controlled impact near the north pole on the near side of the Moon on December 17. Before the end, though, they did some cool things, including flying within 2000 meters of mountaintops, and catching video of Lunar Reconnaissance Orbiter in flight.
Posted by Casey Dreier on 2012/12/13 12:15 CST | 3 comments
Join us for our weekly hangout and catch up on GRAIL, Curiosity, and the future Mars rover.
Posted by Casey Dreier on 2012/11/13 01:48 CST
We're fighting for the restoration of NASA's planetary sciences budget to return to its 2012 level. What does that get us? New financial analysis from our sources in the scientific community provides us a glimpse.
Watching the slow shift of seasons on Titan
Posted by Emily Lakdawalla on 2012/11/06 02:45 CST | 1 comments
A sharp-eyed amateur noticed two images of Titan taken 20 months apart from nearly exactly the same perspective, and they illustrate how the shifting of Saturn's seasons has brought change to Titan's atmosphere.
Posted by Emily Lakdawalla on 2012/11/02 08:03 CDT | 1 comments
Today I stumbled upon the Lunar and Planetary Institute's Lunar Sample Atlas, and was reminded of how much I love petrographic thin sections. They can make unassuming, cruddy looking rocks beautiful.
Connect With Us
Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!
