Callisto's Strange Ice Towers - Most Cratered Moon Of Jupiter

This video examines the most iconic small scale feature of Callisto which are its ice towers, also known as ice knobs. I examine the evidence behind how such features form. The most likely explanation found is that they are mostly eroded crater rims. But how can things erode on Callisto's surface which is largely geologically inactive and on top of that is airless? Well, probably through the sublimation of ices along with maybe some small contribution of small meteorites hitting the surface. The images that were used in this video to piece together the puzzle of how Callisto's surface works were captured by NASA's Galileo spacecraft, however there is much more left to uncover and sadly the Juno spacecraft didn't even do a single flyby of Callisto so far.

Music:
1. Kevin MacLeod - New Direction
2. Audionautix - Deep Space

[johnfyten]

This is such a niche interest, but I can't get enough content about moons in our solar system. Especially some of the more obscure ones. Glad I found this channel

[PocketSand]

Man, imagine seeing this in person. All world governments need to stop funding stupid wars and start getting out there and exploring.

[Redjan_Mapping]

Your videos are so great to watch at night. Callisto is a really underrated moon.

[Marchant]

It's absolutely amazing the variety of landscapes/geographies we have on the many moons and planets in our solar system. Even our dry and unassuming moon has amazing features to it.

Imagine the variety of planets/moons that exists in the entire universe.

[harriehausenman]

I had to watch it twice: The first time I was waaaay too 'distracted' by the images to listen to the voice 🤗
So beautiful. Thanks for making these videos 🙏

[Cdeseco]

It's refreshing to see videos about less talked celestial objects and features.

[masamune..]

Dreksler - i have no idea how i stumbled onto your channel many moons ago, however i absolutely love your content.

Thank you for putting this together. I know its not easy, but man you do a great job

[MasonThatWeirdGuy]

Cool video! Also I notice, your English has gotten a lot more fluent over time, good job!

[Glucoperon]

You're hands down the best in space content

[betapictoris]

Damn bro I’m so happy that u been dropping back to back

[rcketplumber]

Other almost-airless bodies such as Triton and Pluto also have substantial heat transport via sublimation and frost, nitrogen out there in the cold. That the frost is so reflective (in part due to the internal voids, same as snow) helps it reflect sunlight while enhancing long-wave IR emissivity, making it very cold indeed. The dark plains get warmer and drier, the cold mounds get colder and saturated.

@Nighthawkinlight is making super-white, high-e coatings and fibers that get cooler than ambient air in full sunlight using the same principles of porousity for scattering and reflection of sunlight, and high thermal emissivity from the bulk. Engineering often simply replicates natural phenomena.

[ARWest-bpyb]

With JUICE and Europa Clipper we should get a lot better imagery and data on Jupiter's moons. Thanks Drex!👍👍

[mrzorg]

Well done, very informative and a great video. Thank you for your in-depth point of view. Cheers!!! Thumbs up from me.

[GeorgeChoy]

Good morning DA, keep up the good work

[salam-peace]

We found the Ice Spike biomes from Minecraft on Callisto

[ChaseL]

The Callisto Protocol was a great game. It really captured how humans have no business on the dead moon. Was hoping you’d make a video about there!

[TreeSistersOfficial]

Wooo new vid!! 🤩🤩🤩 wonder if there are aliens there

[franciscopagan]

I understand that in the future it will be easier for humans to establish a permanent base in Callisto since it is located somewhat further than Europe from the radiation emitted by Jupiter. Thanks for the video!

[JuliusCaesar]

Saki Kaska and Rom Di Prisco - Callista. Sick track.

[lightningii]

Babe wake up Dreksler Astral uploaded a new video