WHAT WE DO


JOINRENEWJOIN

Get Your 2009 Year in Space Calendar!
 

The Planetary Society Weblog

July 30, 2008: Ustream: What I've Learned About Enceladus

Chat Log

12:08 djellison : If you have questions, please post them as we go along prefixed with QUESTION : - and I'll copy them out into the question - queue
12:19 djellison : Ion and Neutral Mass Spectrometer
12:20 DancesWithWords : http://saturn.jpl.nasa.gov/spacecraft/instruments-cassini-inms.cfm
12:21 DancesWithWords : http://saturn.jpl.nasa.gov/spacecraft/instruments-cassini-uvis.cfm
12:22 DancesWithWords : http://saturn.jpl.nasa.gov/spacecraft/instruments-cassini-cirs.cfm
12:38 MirCat : A stoner who doesn't understand science. Go figure :)
12:38 DancesWithWords : QUESTION: Does that mean that a moon like enceldus would not differntiate?
12:39 MirCat : Is this something newly causing this activity, or are we just now able to detect it?
12:39 nick601 : the latter I think
12:41 KStu : Thanks Emily :-)
12:41 Kempion : general question: whats a "dalton"?
12:41 djellison : DWW - what is 'that'.
12:41 nick601 : a Dalton is a unit of atomic mass
12:41 Kempion : not all of us are rocket surgeons :p
12:41 DancesWithWords : Question: When the say complex are the refering to PAH?
12:41 nick601 : equivalent in mass to a proton, pretty much
12:42 Kempion : weight or mass?
12:42 nick601 : it doesn't matter too much at the scale of a proton :)
12:42 ronaldh : QUESTION: Does you know what the vertical lines on Phobos were cause by?
12:42 KStu : QUESTION: would the "plumes" of Enceladus be visible to an astronaut standing on the surface, or would they be too faint and diffuse?
12:42 DancesWithWords : djellison? Not sure what u are refering to?
12:43 djellison : You asked "Does that mean that a moon like enceldus would not differntiate?". Does what.
12:43 DancesWithWords : oh
12:43 DancesWithWords : right
12:44 nick601 : QUESTION: what is known of the age and origin of Saturn's rings (E-ring aside), and what is their likely lifespan?
12:44 DancesWithWords : that the specific gravity of enceldus
12:44 Funkopolis : QUESTION: Is there much more that Cassini can find out on future flybys? Or will we have to send better probes to learn more?
12:45 Kempion : that is way beyond me... I have enough trouble with mitli-variable algebraic equations
12:45 MirCat : QUESTION: Is there anything in the works to send a robotic Prob to the surface of Cassini or any other moon for that matter.
12:46 MoreInput : QUESTION: About Iapetus: It is a white icy moon with black material on it or a black moon with icy parts on it? It seems that at some places the icy material is over the black material. Any news about that?
12:46 nick601 : Cassini is the probe MirCat, you might want to rephrase your question :)
12:46 djellison : I've re-phrased it ;)
12:47 nick601 : hehe
12:47 MirCat : oh doah!
12:47 Funkopolis : QUESTION: Any chance of damage to Casini from flying through the plume?
12:48 nick601 : good question, you wonder about the camera optics
12:48 nick601 : although the material is very diffuse I suppose
12:49 Kempion : never did understand what "software" was needed to run remote instruments when all you want to do is turn it on
12:49 Kempion : a switch would work lol
12:50 Kempion : on... off... on... off... rinse, repeat
12:50 Funkopolis : Kempion - that works for space washing machines, not much more complex
12:50 djellison : Instruments are a bit more complicated than your washing machine :)
12:50 DancesWithWords : LOL
12:50 Kempion : I dunno... I have to adjust cycle, load size and temperature on my washing machine lol
12:51 Funkopolis : Which you can do nowadays with software in 'em. Firmware, at least
12:51 djellison : Does it have to remember a visual and infa-red spectra, compress it, and then transmit it to solid state memory for transmission to earth :)
12:51 Kempion : there could be a universal command "overpriced, high-tech gizmo - TURN ON!
12:51 KStu : only for colours ;-)
12:52 Funkopolis : djellison - it _would_ help with stain detection....
12:52 djellison : That's a thought
12:52 Kempion : Enceledus?
12:53 djellison : If iof Red > iof Green - ABORT. RED PANTS WITH WHITE SHIRT.
12:53 KStu : QUESTION: so would an astronaut standing on Enceladus see plumes shooting up and/or snow falling down..?
12:53 Kempion : how do ya spell it?
12:53 MoreInput : QUESTION: Will cassini fly through the directly through the rings at the end?
12:54 DancesWithWords : Ya the chicken out on that flyby
12:54 Funkopolis : QUESTION: It seems like Enceladus gets the credit for the E Ring... What about the other rings?
12:55 Funkopolis : That's why alien spaceships have the BEST self-destructs in all those movies.
12:55 MirCat : That's what I wanna see, when/what it hits
12:55 KStu : QUESTION: how close to shattering did Mimas come when the Herschel crater was formed..?
12:55 MirCat : but with it cause a war with the Saturners hehe
12:56 Funkopolis : It's always Christmas on Enceladus!
12:56 KStu : wow... imagine the sundogs and solar haloes on Enceladus... :-) Thanks Emily.
12:57 Manu75 : QUESTION: What about that 'frost' growing on Phoenix's legs?
12:57 Kempion : ghetto rings
12:57 MichaelH : QUESTION: Will we see the particles in the rings resolved?
12:57 djellison : QUESTION : Will we have a week when someone doesn't ask about Phoenix's legs.
12:57 MirCat : lol
12:57 Manu75 : No ;-D
12:57 djellison : If there's news on it - Emily will blog it.
12:57 MirCat : Next probe. have eject charges for the legs
12:58 Kempion : not everyone pays absolute attention to this stuff
12:58 MirCat : She needs some of that Enceladus imported water
12:58 Funkopolis : Just like normal water, but it comes in a handy spray can
12:59 Kempion : ok, how many places in our solar system do we KNOW there is or was liquid water?
12:59 Kempion : planets and/or moons
12:59 nick601 : there's at least one!
12:59 djellison : Did you mean.. QUESTION:How many places in our solarsystem.... etc.
01:00 Kempion : nuh uh... that's a liiiiiiie
01:00 Kempion : sure, question even
01:01 Kempion : and then the Earth fell from the heavens and humans popeed up and stank up the neighborhood
01:02 KStu : Thanks Emily, good answer :-)
01:02 MirCat : Seeing that moving out from the Asteriod belt, the planets nearer have a larger number of moons and the number lessen as you move away. Also the size of the moons are larger inside of the belt. Just like shattering ice on a record. . . anyone floating the idea that the moons are remnants of the .
01:02 Kempion : wow
01:02 MirCat : theoriesed planet that was the asteriod belt
01:02 MirCat : opps Question
01:02 Kempion : so thres big ole chances for life out there/right here
01:03 Kempion : mineralization
01:03 Kempion : sweet
01:03 KStu : absolutely, Kempion :-)
01:04 Kempion : let's go there and drill... until we hit that fledgling life and wipe it out - GO HUMANITY!
01:04 Funkopolis : No, if we drill it's to find ice for our drinks. Genocide would just be bonus
01:04 MirCat : Flashlight for the next probe check :)
01:04 Kempion : Im not a rocket surgeon, BIT I did stay at a Mars Express last night!
01:05 djellison : Big flashlight to light up half a moon from 100km :)
01:05 Kempion : but even
01:05 KStu : the shadows are extremely high resolution tho ;-)
01:05 MirCat : lol
01:05 Kempion : Good show! Great info!
01:05 Funkopolis : Thanks Emily! Superinformative
01:05 KStu : best shadows EVER seen by a spaceprobe ;-)
01:05 Boggratt : Thank you Emily.
01:05 Manu75 : Thanks for using the headphones! ;-)
01:05 MirCat : Thanks for doing it!
01:05 djellison : Record - NOT FAIL.
01:05 StellaGaze : thanks emily!
01:05 MichaelH : Thanks Emily. Good work.
01:05 MoreInput : Bye, keep aways from earthquakes!
01:05 StellaGaze : :D
01:05 nick601 : nice presentation, good questions, thanks