RJMacready73
Simps for Amouranth
Someone explain to this dude the theory of relativity, we ain't going nowhere
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James Webb space telescope (JWST) launch scheduled for 24th of December.
- Thread starter Portugeezer
- Start date
- News Event Science
T8SC
Member
It's a theory that you only tell your relatives.
IDKFA
I am Become Bilbo Baggins
Not in our lifetimes.
A strong candidate for a Earth-like planet is Kepler-452b. The planet is in it's star's habitable zone and could be a home to life.
However, the planet is 1,402 light years from Earth. That means if you were traveling at the speed of light, it would take you 1,402 years to get there from earth. We don't have anything that can travel even close to the speed of light, so traveling to this planet is currently impossible within a human lifetime.
To give you a scale of the distance we're talking here, the New Horizon probe is traveling at 36,000 miles per hour. An insane speed indeed, but even at this speed it would take New Horizons 26 million years to reach Kepler-452b!
The only way it would be possible is if we develop a warp drive. This is currently isn't possible as the technology doesn't exist and involves using exotic matter and negative energy. If it did exist, you could expect the travel time to be maybe a few years. I haven't taken time dilation into account either, which would be another issue all together.
The only way we'd see this technology in our lifetimes is if the whole world joined forces and resources into developing such a technology. With combined funds and resources from the richest nations on Earth, I think we'd crack this in a few decades at least. However, we're still a tribal species that distrust each other. We spend more on developing ways to defend ourselves from other humans than actually spending money on ways that can improve humanity, so unfortunately I doubt we'll ever see a warp drive anytime soon.
ResilientBanana
Member
lol, no.
Sakura
Member
I don't believe they have said how long, just that it will be significantly longer than 10 years because of the extra fuel.
Maybe. It would likely cost billions just to build something that could go out there and refuel it though.
At some point it would probably make more sense just to build a new and better telescope.
The best it can do is detect what a planet's atmosphere is made of. It won't be able to see liquid oceans or anything like that even if they did exist.
And as others have explained we won't be going to any exo-planets in our lifetime.
MastaKiiLA
Member
I think the secondary mirror deployment that's going down now, is the only make or brake deployment. I think they can salvage a mission with anything else failing, even the sun shield. But if this secondary mirror doesn't deploy, this is just space debris. I trust they this deployment is bomb-proof.
Tams
Gold Member
Another way to think of it is merely sending a message. If we could send a message at the speed of light in space (somehow preventing it getting interfered with), it would take 1,402 years to get there. And that's just a simple message.
Or another way, what we see of Kepler-452b is actually Kepler-452b 1,402 and years ago. So even if we could detect space travel around the planet (which we can't), if it had only been developed by the hypothetical inhabitants of there we would only see it 1,402 years later. And vice-versa.
Buggy Loop
Member
Whatever happens now with the mirror’s side deployment, like a failure, with what they have now they could collect data.
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Buggy Loop
Member
Shown during the broadcast :
The spectroscopy one is insane
Goddamn I love engineering marvels. We’re about to be loaded with so many new answers as well as questions from new observations of the universe like never before in history. FUCK YEA!
The spectroscopy one is insane
Goddamn I love engineering marvels. We’re about to be loaded with so many new answers as well as questions from new observations of the universe like never before in history. FUCK YEA!
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Hawking Radiation
Member
Hawking Radiation
Member
How do you propose we cross even 4 light years distance within a single human lifetime. We will get to other star systems but we will be sending advanced robots to explore these places and even that will be a huge challenge.
Voyager 1 travelling at a crazy 10 miles per second will still take 70 000 years to reach our nearest star Alpha Centauri which is 4 something light years away.
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Hawking Radiation
Member
Shown during the broadcast :
The spectroscopy one is insane
Goddamn I love engineering marvels. We’re about to be loaded with so many new answers as well as questions from new observations of the universe like never before in history. FUCK YEA!
Aye WTF? That spectroscopy instrument is nuts.
Buggy Loop
Member
I'll go with Ray Kurzweil's future predictions of the AI singularity and go with :
It won't be meat bags like us that will travel that far in space. It'll be our tools, robots, probably our only remaining trace of existence, that will conquer the stars. Maybe we'll have digitized into machines by that time. Real Humans will be like pet monkeys to robots, or they will get a chuckle looking us when we’re in a zoo like as if today we would see a live Neanderthal. Probably gonna be happening at such a rapid rate that our primate brains just won't comprehend what's going on and the inventions AI will bring will take us so much time to analyze that they’ll already be ahead on something else and other problems while you’re reverse engineering stuffs from their first iterations.
Probably by end of the century they would have all the means to start a long ass voyage, with faster speeds as they wouldn't have to load the space speed boat with cumbersome shits like food and water, or shields for radiation, etc.
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G-Bus
Banned
Are we going to get closer, clearer shots with this thing?
I get it's a lot stronger than Hubble but at the end of the day are we just going to get more of the same in a sense, visually. But instead of seeing a whole galaxy maybe we'll see a star and planets?
So exciting to think about.
I get it's a lot stronger than Hubble but at the end of the day are we just going to get more of the same in a sense, visually. But instead of seeing a whole galaxy maybe we'll see a star and planets?
So exciting to think about.
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greyshark
Member
Webb will primarily be looking in the infrared. Here are the main objectives of the mission:
Webb FAQs - NASA Science
General Questions About Webb Webb’s Orbit Webb’s Mirrors Webb’s Instruments & Technology Webb Science Building and Using Webb Webb and the Public Basic Science More Information General Questions About Webb What is the James Webb Space Telescope? The James Webb Space Telescope, also called Webb...
jwst.nasa.gov
Buggy Loop
Member
We'll literally be able to see the formation of the first stars and galaxies after the big bang, we're talking from 100 to 300 million years after the creation. HST (Hubble) did a good job, but we're way beyond it with the JWST.
It's also a telescope that focus on infrared, which will give us more details inside nebulas for example. It'll give use a different shot than Hubble that's for sure as they focus on different wavelengths, but it'll see light sources 100 times fainter than Hubble (thus also being able to look deep in the past of the universe)
G-Bus
Banned
Awsome, thanks!Webb will primarily be looking in the infrared. Here are the main objectives of the mission:
Webb FAQs - NASA Science
General Questions About Webb Webb’s Orbit Webb’s Mirrors Webb’s Instruments & Technology Webb Science Building and Using Webb Webb and the Public Basic Science More Information General Questions About Webb What is the James Webb Space Telescope? The James Webb Space Telescope, also called Webb...
We'll literally be able to see the formation of the first stars and galaxies after the big bang, we're talking from 100 to 300 million years after the creation. HST (Hubble) did a good job, but we're way beyond it with the JWST.
It's also a telescope that focus on infrared, which will give us more details inside nebulas for example. It'll give use a different shot than Hubble that's for sure as they focus on different wavelengths, but it'll see light sources 100 times fainter than Hubble (thus also being able to look deep in the past of the universe)
I've never seen this image before. Interesting. Part of me hopes they got it all wrong and are just blown away, baffled by what we're going to see.
Don't think I've ever read anything about a cosmic "dark age" either. Cool
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nkarafo
Member
I wonder if this telescope could see the big bang, somehow. Or whatever started the universe.
Also, heres a crazy idea, isn't hubble capable of seeing webb in its final position? Since they couldn't mount cameras on webb, would it possible to see it with hubble and have visual confirmation of its deployment?
Also, heres a crazy idea, isn't hubble capable of seeing webb in its final position? Since they couldn't mount cameras on webb, would it possible to see it with hubble and have visual confirmation of its deployment?
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Buggy Loop
Member
The dark age was basically a fog of hydrogen atoms everywhere. Early on there would be no formation of stars, but by the end of the dark age, stars would probably have formed but still in the fog, so it’s like trying to capture light source through fog, the light never left this blanket to reach us, thus a dark age from our perspective.
Rentahamster
Rodent Whores
Absent any radical advancements in physics and technology, it will be very hard to actually "see" the big bang that close and extrapolate past the planck time.
We don't even know if there's anything that "started" the universe. That implies that there was something "before" the universe, but "before" is a construct of time, and time doesn't exist "before" the universe exists.
Hawking Radiation
Member
Yep.
We'll literally be able to see the formation of the first stars and galaxies after the big bang, we're talking from 100 to 300 million years after the creation. HST (Hubble) did a good job, but we're way beyond it with the JWST.
It's also a telescope that focus on infrared, which will give us more details inside nebulas for example. It'll give use a different shot than Hubble that's for sure as they focus on different wavelengths, but it'll see light sources 100 times fainter than Hubble (thus also being able to look deep in the past of the universe)
It was said that James Webb will be able to detect objects so faint that it'll only be receiving something on the level of 1 photon of light per second. When looking at the moon on a clear night the human eye receives like 100 000s photons of light per second or some shit like that. This just blew my mind because it means Webb has to expose for ridiculous amounts of time to resolve objects 13billion light years away.
Thirty7ven
Banned
The amount of people that can’t grasp the concept of light years is astounding.
It’s why something like James Webb is so important for knowledge, and also why dreams of space travel is for idiots.
It’s why something like James Webb is so important for knowledge, and also why dreams of space travel is for idiots.
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greyshark
Member
haxan7
Banned
Insane Metal
Member
Now there's basically only two more critical operations before JWST starts getting ready: the depolyment of the two primary mirror wings. The first one starts tomorrow and the second, on Saturday.
Spaceman292
Banned
Arrogant morons who think they're superior just because they understand basic things like that are also part of the problem. Share knowledge and educate
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FunkMiller
Gold Member
We did. There’s one crawling out of your toilet right now, Kev. RUN BITCH! RUN!
Kev Kev
Member
RJMacready73
Simps for Amouranth
Then simply explain it in laymen's terms for those people Mr big brains
Thirty7ven
Banned
We will all be living in the Matrix before something man made has covered 1/100 of a light year, how about that.
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IDKFA
I am Become Bilbo Baggins
The distance between star systems is too far for our limited technology.
1 light year is equal to around six trillion miles. That's just 1 light year.
It would take millions of years with our current tech to travel to other star systems.
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greyshark
Member
Voyager 1 will get there around 2150.
RJMacready73
Simps for Amouranth
No need to explain it to me, I read stuff
IDKFA
I am Become Bilbo Baggins
Ah. My apologies. Misread your post.
Well, at least it's there for other people who aren't aware of the vast distance of a light year.
RJMacready73
Simps for Amouranth
Yeah the distances are indescribably vast, humans can't really wrap their heads around it and when you start getting into speeds approaching c time starts to do wierd stuff making the whole endeavour even more improbable, hopefully one day those warp drive theories turn into something tangible cause we ain't going nowhere unless we can bend spacetime around us
How do you entangle 2 particles accross the universe, Einstein?Or maybe transfer your consciousness to the other side of the universe through quantum entanglement.
Entanglement occurs through particle interaction and not somehow magically on demand across the universe.
Coolwhhip
Neophyte
I'll explain later.
Kev Kev
Member
FunkMiller
Gold Member
The only really conceivable way to travel any kind of distance across the universe will have to come from some kind of technology that can punch a hole in spacetime. The Einstein-Rosen bridge allows for such a thing to be possible in theory. General Relativity certainly seems to be far happier with the notion of wormholes than it does faster than light travel - which is deemed impossible.
So, Dune =
Star Trek =
So, Dune =
Star Trek =
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Buggy Loop
Member
NecrosaroIII
Ultimate DQ Fan
For what it's worth, in Star Trek in order to get ftl to work, they had to build giant time machines. Warp Cores work by moving through timeThe only really conceivable way to travel any kind of distance across the universe will have to come from some kind of technology that can punch a hole in spacetime. The Einstein-Rosen bridge allows for such a thing to be possible in theory. General Relativity certainly seems to be far happier with the notion of wormholes than it does faster than light travel - which is deemed impossible.
So, Dune =
Star Trek =
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