99% of scifi papers over these things. Somehow people always land in nice flat areas. Aliens' ground vehicle was modified from an airport tow truck. Talking about convenient flat land.
Even on Earth, with weather and generous erosion, large portions of land are very dense forests or very rough mountains.
One of the 1%. Alien famously starts with the crew of the Nostromo (a space mining rig) riding a transport down to an uninhabited moon where the transport of this mining vessel is damaged by... landing on a rock.
And Luke Skywalker's spaceship crash landed in a swamp.
That's two of the most famous sci-fi franchises in the world, so I don't think sci-fi creators are as guilty of ignoring this possibility as GP seems to think.
In Aliens, there is already a colony where they land. The colony has roads (the original prologue, which is in the special edition, shows Newt's dad driving a truck) and presumably a landing area.
In Alien, the planet landscape definitely is chaotic and hostile to landing, and indeed the crew's ship is damaged during landing.
Tbf if you were an alien landing on earth, there's plenty of smooth flat surfaces available. If you can pick your landing spot, why would you pick dense forests or very rough mountains? Same logic when we land on other planets
I've been reading the Mars trilogy (by Kim Stanley Robinson) after it was recommended on an HN thread a while back, and it's been on my mind to look into what the "chaos" was. Pretty neat
"Badlands of Aram Chaos" itself sounds like a sci fi title. Also, the picture of it in the "Gallery" section is cool and visually confusing. I'm struggling not to see a smooth, reflecting water surface in it, that can't possibly be there.
Edit: I think it's an aerial picture, but my brain insists on seeing it as one taken from the surface.
I'm surprised that we do not have any chaos terrain on Earth. Can't find any explanation why. We have had large sudden flood events on Earth, but maybe weathering orders the 'chaos' over time?
The suggested mechanism is that sedimentary rocks form over ice. That puzzles me in itself, because it implies a river with ice at the bottom. But anyway, then some heat source arrives and melts the ice, causing a sort of rug pull that means the rock layer drops down and breaks up. Kaboom.
At first I thought perhaps it was a non-h20 liquid, since that would explain the frozen bits on the bottom.
Bit apparently it’s more banal, and sediment doesn’t need a river or a liquid at all. It’s any kind of deposit. So wind can deposit sedimen, volcanic ash is sediment glaciers deposit it etc.
I think the most likely case for sedimentary deposition over ice would be something like volcanic eruption or an impact event redepositing material onto pre-existing ice.
We almost certainly did at one point, but life and tides can fill-in the gaps. We also truly do not know what terrain is underneath Antarctica, Greenland, etc.
https://youtu.be/qyNWDzO6kKQ
There is a brief mention of chaos terrain while he searches the surface of Mars for an interesting plot.
Even on Earth, with weather and generous erosion, large portions of land are very dense forests or very rough mountains.
Well, yeah. You pick those.
It's why Blue Origin does their tourist flights out in the desert.
We've even found some specific such sites. Forest coverage turns out to be a very minor issue on Mars.
https://www.space.com/nasa-perseverance-mars-rover-sample-re...
That's two of the most famous sci-fi franchises in the world, so I don't think sci-fi creators are as guilty of ignoring this possibility as GP seems to think.
In Alien, the planet landscape definitely is chaotic and hostile to landing, and indeed the crew's ship is damaged during landing.
Any supermarket car park, for a start.
Plus it would be handy for picking groceries so you can have a cup of tea and something to eat while you figure out how you're going to invade.
Edit: I think it's an aerial picture, but my brain insists on seeing it as one taken from the surface.
Reminds me of "name one thing in this picture"
Bit apparently it’s more banal, and sediment doesn’t need a river or a liquid at all. It’s any kind of deposit. So wind can deposit sedimen, volcanic ash is sediment glaciers deposit it etc.
https://science.nasa.gov/earth/earth-observatory/uncovering-...
https://sealevel.nasa.gov/resources/75/the-bedrock-beneath-a...
https://commons.wikimedia.org/wiki/File:AA_bedrock_bedmap2.4...
https://science.nasa.gov/resource/first-tv-image-of-mars-han...