James Webb Space Telescope (JWST)
- Thread starter JamesW
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In addition to orbiting the Sun, Webb will make a tight orbit around a point in space known as Lagrange 2, or L2. This point is located 1.5 million kilometres from Earth.
Orbit - Webb/NASA
The James Webb Space Telescope (sometimes called Webb or JWST) is a large infrared telescope with a 6.5-meter primary mirror. Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the history of our Universe, ranging from the...
webb.nasa.gov
The James Webb Space Telescope will not be in orbit around the Earth, like the Hubble Space Telescope is - it will actually orbit the Sun, 1.5 million kilometers (1 million miles) away from the Earth at what is called the second Lagrange point or L2. What is special about this orbit is that it lets the telescope stay in line with the Earth as it moves around the Sun. This allows the satellite's large sunshield to protect the telescope from the light and heat of the Sun and Earth (and Moon).
NASA plans to launch the James Webb Space Telescope into orbit Dec. 18, 2021.
Getting close to the big day.
Getting close to the big day.
Steven Spielberg's birthday. Fitting for the director of Close Encounters of the Third Kind and E.T.
Technically he did Indiana Jones 4 too, but I agree we should try to erase that one from our memories.
Countdown to Webb's 1st Images Webb/NASA
Countdown to the release NASA's Webb Space Telescope 1st first full-color images and spectroscopic data. The James Webb Space Telescope (sometimes called Webb or JWST) is a large infrared telescope with a 6.5-meter primary mirror. Webb will be the premier observatory of the next decade...
jwst.nasa.gov
- May 23, 2015
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Will you ride along with your namesake telescope and, if so, how long do you expect to be away from TFP?
I have applied to ride along, but they said no (even though I paid for the entire thing).
I will have to log into the datacenter along with everyone else.
It’s going to be amazing what it finds.
kul
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- Oct 1, 2021
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Wait. I’m late to this story, but apparently have not missed this launch. so exciting. Did you help create this telescope? Or are you one of us super fans?!
- May 23, 2015
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It’s going to be funny to see all the little green aliens riding comets out in the Kuiper Belt dropping their spacesuit pants and mooning the telescope …. totally worth the $80,000,000,000 spent building it !!
While touring a NASA facility, I mentioned the idea to someone there who seemed important.
While I can’t say for sure that this was the defining start of the telescope, I choose to believe that it was the primary reason that the telescope project was started.
One of the reasons that we need the JWST is because some of the photons from distant galaxies are redshifted and the JWST is designed to see the light from the most distant galaxies.
Some of the photons are not redshifted.
Which photons are not redshifted and why aren't they redshifted?
Some of the photons are not redshifted.
Which photons are not redshifted and why aren't they redshifted?
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Photons and gluons are gauge bosons that are unaffected by the Higgs field, so they are not just light, they are massless.
Also, from its perspective, the photon does not experience time.
As far as a photon is concerned, the trip from 10 billion light years away took zero time and the photon went zero distance since the length was contracted to zero in the direction of travel.
Also, from its perspective, the photon does not experience time.
As far as a photon is concerned, the trip from 10 billion light years away took zero time and the photon went zero distance since the length was contracted to zero in the direction of travel.
Redshift happens when the wavelength of light is made longer.
For example, blue light has a shorter wavelength than red light.
So, as the blue light gets stretched out, the wavelength gets closer to the wavelength of red light, hence “redshift”.
However, if the photons are red or longer wavelength, the further stretching of the wavelength shifts the wavelength away from red towards radio frequencies and not towards red.
So, the photons are radio shifted.
Technically, any increase is called redshift even when the wavelength is shifted away from the red wavelength, so it was a trick question.
Turbo1Ton
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Sorry - I have no idea what was just said, but this was all I could think of.
I do appreciate the share of the launch site. I am going to be looking at that. This looks like it will be really amazing!
--Jeff
I’m honestly worried that it will be a smashing success. And when they zoom in on Mars (or wherevs)……..
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Few people realize this but the movie “Mars Attacks” is a documentary …
