I’m not looking for conspiracy theories with no evidence. I’m looking for legitimate concerns and questions.
I’m also looking for an answer to the raditation belt issue. Why do so many people think we haven’t developed materials to block the radiation?
I’m kinda confused about Planet Nine.
If he exists he might take from 10,000–20,000 years just to orbit the Sun once, meaning it’s insanely far away. So is it basically outside the Solar System at that point, or still fully inside it?
And another thing I don’t get: if it’s THAT far away how does the Sun’s gravity still keep it orbiting instead of it just drifting away into space? Also went there was a planets like this on our solar system ?ik about the 9 main planets on our solar system didn’t realize there is more really would like to learn about thoes far away planets that still orbiting our sun from far away
My understanding is that basically just Titan (on the surface) and Venus (in the clouds) are the places in the solar system that wouldn't require a pressure suit for human survival. Venus even has nice temperatures, however it would require some sort of airship and there would be battery acid droplets in the air. Titan, on the other hand, is stupidly cold but at least no acid burns. Both places would obviously require a breathing mask and some amount of protective clothing, though much like space I think just walking outside naked and not breathing for a few seconds might be survivable or even bearable. For a few seconds, anyway...
My question is which of these places requires less specialized survival gear to be outside on an EVA for like an hour? Which one would be more pleasant?
my plan for space is i'll find startup who working on humanoid and space tech company we make robot work on solar power and launch it as capsule on to targeted planet for research
It was taken on an iphone so granted It could just be a glitch and it wasn’t a Plane or some sort of aircraft as the sky was clear other than the obvious stars when the photo was taken. Thought I would ask just to see what people say or if it would just be an error with Iphones Autofocus on images. It’s not the greatest quality either but seen it today and thought it was interesting.
Hi everyone, I’m curious about the fundamental physics of rocket propulsion.
According to Newton's Third Law, we often say 'for every action, there is an equal and opposite reaction.' In many textbooks, the 'reaction force' that pushes the rocket upward is described as the gas molecules pushing against the internal walls/nozzle of the engine.
My question is: Is it more accurate to view thrust as the pressure exerted on the engine's internal structure, or is it strictly the conservation of momentum from the high-velocity exhaust gases? I’d love to hear a more technical breakdown of how this force is actually transferred to the rocket's frame.
Land is own by many countries, people there after that. When country own some land, do they own space above them? or upto how much kilometers?