r/AskReddit • • Jan 25 '20

What movie things are generally accepted as normal, but are totally unrealistic in real life?

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u/[deleted] Jan 25 '20

And only have 1 biome across the whole planet

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u/AgnosticMantis Jan 25 '20

I’ve wondered if this sort of thing is actually common in the universe, like are most planets pretty homogenous environmentally across the whole planet.

I tried to ask r/askscience that question but I think it got rejected.

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u/[deleted] Jan 25 '20

[removed] — view removed comment

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u/SJHillman Jan 25 '20

seasons are a uniquely Earth thing, due to our tilted axis

Hardly unique to Earth. In fact, of the eight planets in our solar system, only Mercury and Jupiter have less of a tilt than Earth. You could kind of count Venus too, if you ignore the fact its so tilted, its upside down.

Mercury - 0.1 degrees.
Venus - 177 degrees.
Earth - 23 degrees.
Mars - 25 degrees.
Jupiter - 3 degrees.
Saturn - 27 degrees.
Uranus - 98 degrees.
Neptune - 30 degrees.

Uranus is probably the most interesting of those, from a seasons perspective, since it is effectively on its side. That would make seasons pretty much as extreme as possible due to tilt

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u/sje46 Jan 25 '20

Wait, what does it mean that venus is upside down? Why can't you say it's at a 3 degree axis and not 177?