Recent comments in /f/space

Stupid-Idiot-Balls t1_j7vde8j wrote

Ahhh yes, the most successful space company by a large margin, who launches more payload into space than the rest of the world combined, who are testing the biggest rocket ever created which happens to be fully reusable, is becoming a bigger joke everyday.

Critical thinking, my guy.

Their starlink support isn't waning whatsoever by the way, they're just not allowing ukraine to put starlink on weaponized drones. They can still use it the exact same way they've been for the whole invasion.

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triffid_hunter t1_j7vd6pd wrote

> Now if an object is lets say 200 light years away, would it take 200 (Earth years) to travel to said object?

It would take 200 years for photons or other massless particles (eg gravity waves) to travel from there to here or vice versa - but it would take a manmade spaceship hundreds to thousands of millenia because we don't have yet any rocket engines efficient enough to get there faster.

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JimeneMisfit t1_j7vcfkn wrote

I’d say it’s analogous to quantum mechanics- 50/50. It maybe does exist until we observe it, which is why it is an elusive concept to grasp. It’s in the state of existence until we look for it, at which point it no longer exists. As a physics major, I learned to accept that some things are just beyond our limit of perception as human beings. I think if we could somehow detach our consciousness from our mind and be just that - a consciousness without our body (which is bound to this reality), we could see through the proper lens to answer your question. However, we are limited to the physics of our dimension. As Einstein said about quantum entanglement - “spooky action at a distance.” I think the same can be said for multiverses. It’s simply that - a spooky concept that resides a great distance from our reality. Maybe beyond this life, but in this one - its a philosophical theory. I sometimes think this reality would crumble if we could answer such things. I don’t think our minds could handle such a truth.

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bookers555 t1_j7vcdlc wrote

Bear in mind that even if Starship didnt fly until 2027 it would still be the fastest developed super heavy lift rocket, and the first to be reusable.

If it works, it will leave the Moon just a ticket away.

Lets have patience, the reward will be worth it.

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topcat5 t1_j7vc58y wrote

You are correct if you are asking if that's how long it would take light to reach those places from the Earth.

Of course there's no known technology that would even begin to allow us to approach those speeds for travel.

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blaster151 t1_j7vc4ex wrote

At closest approach, I wonder how high you'd have to launch/propel something for it to leave the gravity well of your tiny moon and be sucked into the terrifying vortex of the gas giant. (Come to think of it, how weak would gravity seem on a moon no more than a couple of miles across? How high would you be able to jump and how long would it take to float back down? The mind boggles!)

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JackBMo t1_j7vc3lb wrote

A light year = the amount of time it takes for light to travel in a year. If we could travel at light speed it would take 642 years to reach Betelgeuse. However we can not even come close to those speeds. So it would take a lot, a lot longer.

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AlunWH t1_j7vbz9e wrote

The closest planet outside our solar system is Proxima Centauri B.

Proxima Centauri B is 4.2 light years away. That may not sound that much, but it’s actually about 25 trillion miles. That’s 25,000,000,000,000.

The space shuttle Discovery could travel five miles a second. At 5 miles a second it would take 37,200 years to travel just one light year. One. So Proxima Centauri B is more than a hundred thousand years away for us.

A light year may not sound much, but it’s massive.

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