No.157336
Our current space technology is extremely limited. Spacecraft don’t "fly"—they’re like throwing a dart at a target. You launch them with force, and if aimed correctly, they hit their destination. There’s no real control after launch.
On Earth, airplanes can change direction easily because the atmosphere provides resistance. But in space, there’s nothing to push against. To truly maneuver, a ship would need thrusters on every side and an impossible amount of fuel. That’s why our Mars probes don’t "fly" there—they’re just flung toward Mars and crash-land.
Fuel and Physics Make Interstellar Travel Impossible
Even going to the nearest star in a reasonable time would require more energy than exists in the entire universe. And that’s just the fuel problem.
The Human Body Can’t Survive Long in Space
Without gravity, muscles and bones waste away. We can only stay in space for short periods before our bodies break down.
If Aliens Can Visit Us, Our Science Is Wrong
If aliens are traveling here, they’ve solved problems we can’t even imagine:
Surviving long space journeys.
Maneuvering ships like airplanes (without needing infinite fuel).
Breaking Einstein’s speed-of-light limit.
Scientists have been wrong about many things before. If aliens are real, everything we think we know about space travel is probably wrong too.
If space travel is impossible and aliens are already here, does that mean humanity is just a failed science experiment abandoned by advanced civilizations? Scientists swear by Einstein’s laws but if aliens cracked light-speed, does that make modern physics just a glorified religion for nerds?
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No.157356
>Spacecraft don’t "fly"—they’re like throwing a dart at a target. You launch them with force, and if aimed correctly, they hit their destination. There’s no real control after launch.
Space doesn't have dense air to slow you down. But you're forgetting that spacecraft are built with onboard thrusters to steer. And they can use gravitational fields of planets to steer as well.
The Voyager space craft used the gravity of the gas giants to make a thirty year expedition into twelve years. (At the time in the late 1970s, Jupiter Saturn, Uranus, and Neptune were aligned in synchronous alignment).
>Fuel and Physics Make Interstellar Travel Impossible
Even going to the nearest star in a reasonable time would require more energy than exists in the entire universe. And that’s just the fuel problem.
Scientists were suggesting using nuclear power as propulsion or even working on electron propulsion. Problem with using nuclear power propulsion is that it needs to be far away from earth.
>The Human Body Can’t Survive Long in Space
Without gravity, muscles and bones waste away. We can only stay in space for short periods before our bodies break down.
You're forgetting radiation levels. Our earths atmosphere blocks high frequency EM energy beyond UVB. And lack of friction can affect bodily mechanics as well.
>Scientists have been wrong about many things before. If aliens are real, everything we think we know about space travel is probably wrong too.
>If space travel is impossible and aliens are already here, does that mean humanity is just a failed science experiment abandoned by advanced civilizations? Scientists swear by Einstein’s laws but if aliens cracked light-speed, does that make modern physics just a glorified religion for nerds?
Scientific inquiry has been always a glorified nerd cult for the past four centuries.
Also, have you considered that maybe the aliens who visit us may have different technological development? Maybe they come from planets with exotic materials that defy our current known laws of physics?
Or better yet, why assume that aliens are three dimensional organic beings?
They could be interdimensuonal beings.
Study the UFO phenomenon and you find there's a lot of magic and mysticism involved more than physics.