Webb almost finished and preparing for L2 insertion burn soon. Surprised at so little drama, publicly anyway. Found a catalog of investigations scheduled to use it so far, dates, investigator, institution, title of investigation, etc. Some of them are funny; one was called something like "What Am I Supposed to Breathe?", a study of exoplanet atmospheres
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Interesting Posts Today
- Thread starter halfmile
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Been following, was waiting for the completed burn to update.
The mirror assembly was completed and locked, collimation (word for the day) will take several more months to complete.
Didn't research but a tight orbit around L2 is like riding a merry go round that's riding a merry go round. Getting long exposure times must be interesting
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Given the distance to the subject, the parallax caused by that motion might be insignificant, don't know. Lots of Lagrange points explanations on youtube now, not surprisingly. PewDiePie and Jake Paul are on it 
Today on the great VFT site.Where does Dennis get this stuff? Always interesting.
https://www.theguardian.com/austral...-across-australia-as-dawn-service-held-online
Advance Australia Fair!
Heard a report that they saved so much fuel that it could now operate for 20 years instead of the 10............Any truth to that
They're claiming much longer fuel life for sure. But I think that was one of those quote short, deliver long deals.
cant wait to see some results
Went to an interesting lecture by Michio Kaku a Quantum physicist, futurist the other night.
Dark matter, galactic clouds block our view of the center of our galaxy, if they didn't we would see a large reddish glow spot in the night sky in Sagittarious, that is the very "hot" center of the Milky Way. The JWST will be able to "see through" those clouds and peer into that center, as infrared light isn't blocked by them.
Dark matter, galactic clouds block our view of the center of our galaxy, if they didn't we would see a large reddish glow spot in the night sky in Sagittarious, that is the very "hot" center of the Milky Way. The JWST will be able to "see through" those clouds and peer into that center, as infrared light isn't blocked by them.
The last time that astronauts visited the Hubble telescope they installed an infrared camera that allowed them to see more than just visible light. Then as an experiment they pointed the telescope to what appeared to be black empty space and left the exposure open for a long time ( maybe days, I don’t recall ) the result was this astonishing image,
And keep in mind that this view is is just a tiny slice of what is out there, multiply this by 30 million and you can get an idea of how vast space is. The James Webb telescope is said to be 100 times more powerful than Hubble, scientists say it can see in minutes, what Hubble would take months to see. It’s very exciting!
And even if only 1 out of a 1,000,000 of those lights in the sky have intelligent life forms???
Each one of those "lights" is a galaxy... each with millions of suns.... and planets.
I found this information about the Hubble photo I posted above in post #94,
“This view of nearly 10,000 galaxies is called the Hubble Ultra Deep Field. The snapshot includes galaxies of various ages, sizes, shapes, and colours. The smallest, reddest galaxies, about 100, may be among the most distant known, existing when the universe was just 800 million years old. The nearest galaxies - the larger, brighter, well-defined spirals and ellipticals - thrived about 1 billion years ago, when the cosmos was 13 billion years old.
The image required 800 exposures taken over the course of 400 Hubble orbits around Earth. The total amount of exposure time was 11.3 days, taken between Sept. 24, 2003 and Jan. 16, 2004.”
Credit:
NASA, ESA, and S. Beckwith (STScI) and the HUDF Team
“This view of nearly 10,000 galaxies is called the Hubble Ultra Deep Field. The snapshot includes galaxies of various ages, sizes, shapes, and colours. The smallest, reddest galaxies, about 100, may be among the most distant known, existing when the universe was just 800 million years old. The nearest galaxies - the larger, brighter, well-defined spirals and ellipticals - thrived about 1 billion years ago, when the cosmos was 13 billion years old.
The image required 800 exposures taken over the course of 400 Hubble orbits around Earth. The total amount of exposure time was 11.3 days, taken between Sept. 24, 2003 and Jan. 16, 2004.”
Credit:
NASA, ESA, and S. Beckwith (STScI) and the HUDF Team
Amazing three dimensional video examining the Ultra deep field Hubble Photo.
Amazing ain't it... that was just a piece of sky your could put your arm out and block with your thumb.
"It's estimated there is hundreds of billion galaxies." If that don't make ya feel small....
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