Looking for Life As (we think) We Know It: Enceladus and Europa

[@zapfanzapfan]

Fantastic presentation! Thanks for uploading! Hope to see ELF going to Enceladus soon!

[@KarbineKyle]

Outstanding lecture! This is awesome! Let's all get on board the ELF mission, and do this! Thank you for posting!

[@ameliadiaz8040]

How about new unmanned space missions to other icy planetary moons such as Callisto, Ganymede, Phoebe, Hyperion, Mimas, Tethys, Dione, Iapetus, Rhea, Triton and all the five Uranian major moons - Miranda, Ariel, Umbriel, Oberon and Titania?

[@flukeseawalker]

Where do the radioactive charged particles come from that are hitting Europa's surface?

[@yrysf777]

from Jupiter , Europa is quite close to Jupiter too

[@flukeseawalker]

Where does Jupiter get them?

[@personzorz]

Its magnetic field is spinning at the rotation rate of the planet. As it sweeps over the moons which are having ions sputtered off of them by solar radiation the charged particles are accelerated by the moving magnetic field until they are moving fast enough to circle the planet in one rotation period, giving them an energy high enough to call radiation.

[@flukeseawalker]

If Enceladus is spilling material out into space than the moon must be shrinking, right?

[@zapfanzapfan]

The estimate I have heard is that at the present mass flow Enceladus would loose 10% or so of its mass over the life of the solar system.

[@kevinclayton1656]

Remember what it expels it also collects back over time, the E ring is Enceladus plum and it orbits in the middle so it's bumbing into the ice and collecting it constantly

[@kevinclayton1656]

Its a shame we couldn't of sent this with dragonfly mission."kill two birds with one stone."nasa needs to go back to Enceladus.it basically shouting at us to come take samples.and we decided not to do it.and they picked dragonfly instead.which is a great mission and we will learn alot.but Enceladus is there in space.its a slam dunk we cart fail unless the rocket blows up.its sad we won't get back to Enceladus untill.2040 at the earliest

[@casienwhey]

I guess the mission never came to pass. Too bad, would have been interesting to find out the results.

[@yrysf777]

Couldn't watch the whole video as its kinda long. So Titan's ocean is not water ocean and Europa is all ocean without land underneath the ice shell , is that right ?

[@robburnett2672]

no Europe is thin ice shell with a salty ocean 70km deep (2x more water than all of earth has) and it is in contact with a silica (rock) core! enceledus I much smaller and similar to europas and has proven plumes...

[@flukeseawalker]

This video is a little misleading. Where does the energy for life come from on Europa. As a viewer I am led to believe that life can be sustained by stretching a moon-size water balloon. need more information, please.

[@robburnett2672]

bend a paper clip a bunch of times does it get hot? well is that energy? that's whats happening here? 14:30

[@flukeseawalker]

Heat will not support life. It is the result of life not a requirement.

[@jesseback3536]

The lectures/presentations on finding life are almost always misleading. Keeping the public interested is the goal as it secures more taxpayer funding for programs. The truth is, the requirements for life are very specific and well defined. They know there is not life there and never has been. Fossils from the early earth are likely to be found on the moon and some other bodies in our universe due to asteroid impacts. This I find a valuable endeavor, as we can learn more about the beginning of life here. (Earth's geology has destroyed any record of it here on our planet) However, looking for established life on any body in our solar system is a waste of effort and resources.

[@KenStarks]

"They know there is not life there and never has been." I'd like to see this referenced somewhere. We could have a real impact on this , possibly shutting the whole thing down. Just show us the reference for your statement and I'll get to work on it immediately.

[@personzorz]

The heat drives the convection of liquid water through rock fractures at the seafloor, which creates hydrogen via chemical reactions between deep rock types and water. The reaction between CO2 and hydrogen is the energy source for whole ecosystems on Earth driven by undersea hydrothermal vents driven by the same process, and may have been one of the very first energy sources used by life on Earth.

[@shyamvijay8985]

Half a billion dollars to send a second mission to a rock in the middle of nowhere, while people die of no oxygen in a global pandemic..

[@MrPokerblot]

49:33 how did he know Trump would win the presidential election lol

[@bohkory2690]

If you ever want to ACTUALLY/FACTUALLY visit these planet. Vote for #corehyperdrive. I guarantee my new technology 'permanent ships,' is the future of deep spaceflight. The more votes, the sooner we all get there...

[@mikeschatz9153]

I love trump.!!!!! 2 years into the greatest president ever and he is still keeping promises. Thanks mr. president .

[@richardfendersr.4580]

Only promise I see him keeping is the ones he made to putin, we will soon be dealing once again, with the soviet empire thanks to this traitor that you love soooo much!