Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Multimedia IconMultimedia

Cassini Update AND LightSail Spreads its Wings!

Fingers of Enceladus

Air Date: 06/09/2015
Run Time: 28:50

Listen to the full show:

Or Download mp3


  • Linda Spilker, Cassini Project Scientist, Jet Propulsion Laboratory

Topics: Enceladus, Cassini, Planetary Society Projects, mission status, Planetary Radio, LightSail, Saturn's moons, Planetary Society, Bill Nye

Support Planetary Radio

Our most frequent guest, Cassini Project Scientist Linda Spilker, returns with another update on the magnificent mission at Saturn, including evidence for hydrothermal vents in the oceans of Enceladus! You’ll also hear Bill Nye and the moment when LightSail began to deploy its solar sail. Bruce Betts drops by with many more reasons to watch and wonder in What’s Up.

Modeling the geysers of Enceladus

NASA / JPL-Caltech / Space Science Institute

Modeling the geysers of Enceladus
This collage of Cassini spacecraft images and computer simulations shows how long, sinuous features from Enceladus can be modeled by tracing the trajectories of tiny, icy grains ejected from the moon's south polar geysers.

Related Links:

Trivia Contest

Too bad there’s no contest this week. We were going to give away a new car.

This week's question:


Last week's question:

Soviet Alexei Leonov performed the first spacewalk (extravehicular activity). Out of all spacewalks, what number, in chronological order, was the next Soviet spacewalk?


The answer will be revealed next week.

Question from the week before:

How many Atlas 5 launches took place in 2014?


There were nine launches of Atlas 5 rockets in 2014.


No trivia contest spoilers please!

dougforworldsexplr: 06/11/2015 09:16 CDT

Hi Linda Spilker; I found your update of the Cassinni mission quite interesting especially the part about Enceladus. I think it is easier to detect evidence of possible life from likely seas in Enceladus than from Europa because there are more regular ice jets from Enceladus. I was glad to hear that your team was able to detect dust grains and methane from these jets that support a subsurface ocean of water on Enceladus. I think I heard you say that on an upcoming pass of Cassinni through the jets of Enceladus this October there will be further search for the contents of the material in the jets. What is the possibility that more definite evidence of possible bacteria or other life that could be in the subsurface ocean of Enceladus some of which could be spouted into space could be detected by Cassinni such as what organic chemicals or other detectable chemicals or material?

Leave a Comment:

You must be logged in to submit a comment. Log in now.
Facebook Twitter Email RSS AddThis

Planetary Radio Search

Essential Advocacy

Our Advocacy Program provides each Society member a voice in the process.

Funding is critical. The more we have, the more effective we can be, translating into more missions, more science, and more exploration.


Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!