The James Webb Space Telescope (#JWST) has discovered evidence of carbon-based molecules in the atmosphere of a suspected ocean world.
๐ https://www.space.com/james-webb-space-telescope-exoplanet-atmosphere-carbon-dioxide-methane
Astronomers have long debated what kind of chemistry might serve as a bona fide alien biosignature. With the launch of the James Webb Space Telescope, those ideas may be put to the test.
โ๏ธ Elise Cutts
#knowablemagazine #sciencemastodon #astronomy #jwst
#JWST #HighRedshift #GalaxyEvolution
From "The First Year of JWST Day 1 - Session 1 (Sep 11, 2023)"
Space Telescope Science Institute (STScI) Research Staff Channel
Haojing Yan
๐ https://youtu.be/pAPeLRl5rT0?t=2242
"Last year when we first published our work on very high redshift z>11 in SMACS 0723 we were very badly smashed."
Yan et al. used a stricter selection filter, but z_photometric > 13 galaxies still don't show the expected rapid evolution.
#jwst #highredshift #galaxyevolution
OK, it's really cool that the James Webb Space Telescope #JWST found methane and carbon dioxide in an exoplanet's atmosphere, but it also might have found dimethyl sulphide. On Earth, this molecule is only produced by life and is considered a key biosignature for planets like the one studied.
@spacetelescope And the YouTube link for the First Year of #JWST Science Conference is working now: https://www.youtube.com/live/pAPeLRl5rT0?si=OwuW37-p7oWbkwq4
Scientists using #NASAWebb have found an abundance of methane and carbon dioxide in the exoplanet K2-18 bโs atmosphere. With a shortage of ammonia, these results are consistent with the presence of an ocean underneath a hydrogen-rich atmosphere: https://webbtelescope.pub/3r1yWHa #JWST #astronomy
Did #JWST plus #ALMA just reveal how #pulsars form?
https://bigthink.com/starts-with-a-bang/jwst-alma-how-pulsars-form/
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ๆฅๆฌใฏAM1ๆ45ๅใ้ใใพใใ๐ใใฏใใใใใใพใโจ
ไธ็ใฎใฟใชใใพใใใซใกใฏ/ใใฏใใใใใใพใโจ
ๅ ใปใฉ(79ๅ็ฎใฎ)PCRๆคๆปๆคไฝๆกๅ๐คค๐งชใDs2ใในใฏ็็จใใฆ้ตไพฟใในใ๐ฎใซๆๅฝใใฆใใพใใ๐บโจ๐ถ๐ท๐พ
ใฟใชใใพใฎใๅฅๅบทใ็ฅใใใฆใใใพใ๐บโจ๐ถ๐ท๐พ๐ง
#JCP #JWST
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ๆฅๆฌใฏAM1ๆ45ๅใ้ใใพใใ๐ใใฏใใใใใใพใโจ
ไธ็ใฎใฟใชใใพใใใซใกใฏ/ใใฏใใใใใใพใโจ
ๅ ใปใฉPCRๆคๆปๆคไฝๆกๅ๐คค๐งชใDs2ใในใฏ็็จใใฆ้ตไพฟใในใ๐ฎใซๆๅฝใใฆใใพใใ๐บโจ๐ถ๐ท๐พ
ใฟใชใใพใฎใๅฅๅบทใ็ฅใใใฆใใใพใ๐บโจ๐ถ๐ท๐พ๐ง
#JCP #JWST
ๆฅๆฌใฏ17ๆใ้ใใพใใ๐ใใใฐใใฏโจ
ไธ็ใฎใฟใชใใพใใฏใใใใใใพใโจ/ใใใฐใใฏโจ
ๅฎฎๅ็่ญฐ้ธไฝใจใๅ ๅฐๅ ๆฐใจใใฆใฏ่ฅๆๅบใงJCP็ฆๅณถใใใไบๅฎๅ่ฃใๅใใใใใงใ๐บโจ๐ถ๐พ๐ท
For those curious about #JWST's stars' actual diffraction patterns (or why are the stars "spikey"):
https://webbtelescope.org/contents/media/images/01G529MX46J7AFK61GAMSHKSSN
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ๆฅๆฌใฏๆ3ๆใ้ใใพใใ๐ใใฏใใใใใใพใโจ
ไธ็ใฎใฟใชใใพใใใซใกใฏโ/ใใฏใใใใใใพใโจ
้ธๆใฎๅฟๆดใซ่กใใฎใงใญใทใฅใฎๆๅๆคๆปใใฆใฟใพใใ๐ไธๅฟ้ฐๆงใงใโจ
FLOMASK๐ทใจใดใผใฐใซ๐ค็็จใใฆไปๅฐใธ่กใใพใใ
็พๅจโใ้ใฃใฆใใพใ๐ฟ
ใฟใชใใพใฎใๅฅๅบทๅฟใใใ็ฅใใใฆใใใพใ๐บโจ๐ถ๐ท๐พ
#JCP #JWST
The Story of our #Universe
May be starting to unravel - Do
we need to rethink key features of the
#origin and development of the #universe ๐ง
https://www.nytimes.com/2023/09/02/opinion/cosmology-crisis-webb-telescope.html?smid=tw-share
#jameswebb #jwst #universe #origin
JWST Accidentally Found 21 Brown Dwarfs
JWST is the most powerful telescope ever built by humanity, and it's scanning into the very limits of the observable Universe to see the first galaxies coming together. However, as part of several galactic surveys, astronomers have already identified 21 brown dwarf candidates in the data, much closer to home. Some are as close as around 325 light-years, others as far as 13,700 light-years - farther than any brown dwarfs discovered. Quite a handy side-benefit.
Not my area of science but looking at ACT-CL J0102-4915 pretty much convinces me that there were only about 12 galaxies in the early universe and the whole sky is just gravitationally lensed versions of them.
That is all
#Astronomyodon #JWST
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ใฟใชใใพใใฏใใใใใใพใโจใพใใฏใใใฐใใฏ๐
ๆๆฅๅฎฎๅ็่ญฐ้ธใฎๅฟๆดใซ่กใใฎใงใใไบๅฎๅ่ฃ่ ใใ้ฃ็ตกใใใใๅฐ้ขจใงใใใฐๆฅใชใใง่ฏใใจใ้ ๆ ฎใฎ้ฃ็ตกใงใใ๐บโจ๐ถ
ใฟใชใใพใฎใๅฅๅบทใใ็ฅใใใฆใใใพใ๐บโจ๐ถ๐ท๐พ๐ง
#JCP #JWST
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ๆฅๆฌใฏ23ๆ50ๅใงใ๐ใใฏใใใใใใพใโจ
ไธ็ใฎใฟใชใใพใใใซใกใฏโ/ใใใฐใใฏโจ
ๆๆฅใฎๅฎฎๅ็ใฏๅฐ้ขจใฎๅฝฑ้ฟใงๅคง้จไบๅ ฑใงใ๐ฟ
็ฆๅณถใใใ็่ญฐ(JCP)ใฎไบๅๆใณใใ่กใใใใช๏ผ
ใฟใชใใพ็ด ๆตใช้ฃไบใจใๅฅๅบทใ็ฅใใใฆใใใพใ๐บโจ๐ถ๐ท๐พ๐ง
#JCP #JWST
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ๆฅๆฌใฏ18ๆ35ๅใ้ใใพใใ๐ใใใฐใใฏโจ
ไธ็ใฎใฟใชใใพใใฏใใใใใใพใโ/ใใใฐใใฏ๐
ๅ ใปใฉใพใงใธใฃใใผใบไผ่ฆใ่ฆณใฆใใพใใใๆงๅ ๅฎณใ้ ่ฝใใไฝ่ณชใฏๅคใใใพใใใญ๐พ๐ข
ใฟใชใใพใฎใๅฅๅบทๅฟใใใ็ฅใใใฆใใใพใโจ
#JCP #JWST