Extremely distant galaxies, observed by JWST using NIRCam while its other instrument, NIRSpec, observed other targets.
The method of observing two targets at a time is called "pure parallel observation".
The method of observing two targets at a time is called "pure parallel observation".
January 19, 2025 at 6:34 PM
Extremely distant galaxies, observed by JWST using NIRCam while its other instrument, NIRSpec, observed other targets.
The method of observing two targets at a time is called "pure parallel observation".
The method of observing two targets at a time is called "pure parallel observation".
New pic of Uranus just dropped
February 21, 2026 at 6:54 PM
New pic of Uranus just dropped
Now that there's a NIRSPEC on JWST, I vote we rename NIRSPEC on @keckobservatory.bsky.social to NIRKECK or NIRSECK
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January 23, 2025 at 6:37 PM
Now that there's a NIRSPEC on JWST, I vote we rename NIRSPEC on @keckobservatory.bsky.social to NIRKECK or NIRSECK
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Comet 3I/ATLAS, the interstellar visitor that blew through our solar system, might have been a truly ancient relic.
A new analysis of its unusual composition suggests the comet could be up to 12 billion years old, dating from the earliest era of our galaxy. 🧪🔭
esawebb.org/news/weic2613/
A new analysis of its unusual composition suggests the comet could be up to 12 billion years old, dating from the earliest era of our galaxy. 🧪🔭
esawebb.org/news/weic2613/
June 23, 2026 at 4:37 AM
Comet 3I/ATLAS, the interstellar visitor that blew through our solar system, might have been a truly ancient relic.
A new analysis of its unusual composition suggests the comet could be up to 12 billion years old, dating from the earliest era of our galaxy. 🧪🔭
esawebb.org/news/weic2613/
A new analysis of its unusual composition suggests the comet could be up to 12 billion years old, dating from the earliest era of our galaxy. 🧪🔭
esawebb.org/news/weic2613/
NASA's James Webb Space Telescope on Flickr (May 30, 2023)
NIRSpec observations by Webb uncover the water vapor plume of Enceladus and its connection to the torus around Saturn's moon.
flic.kr/p/2oDW7mm
NIRSpec observations by Webb uncover the water vapor plume of Enceladus and its connection to the torus around Saturn's moon.
flic.kr/p/2oDW7mm
September 26, 2026 at 9:00 AM
NASA's James Webb Space Telescope on Flickr (May 30, 2023)
NIRSpec observations by Webb uncover the water vapor plume of Enceladus and its connection to the torus around Saturn's moon.
flic.kr/p/2oDW7mm
NIRSpec observations by Webb uncover the water vapor plume of Enceladus and its connection to the torus around Saturn's moon.
flic.kr/p/2oDW7mm
Callisto by James Webb.
This is a NIRSpec/IFU observation from November 2022.
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This is a NIRSpec/IFU observation from November 2022.
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January 31, 2024 at 4:35 PM
Callisto by James Webb.
This is a NIRSpec/IFU observation from November 2022.
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This is a NIRSpec/IFU observation from November 2022.
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NIRSpec/IFU observation of HE-0435-1223, a strongly lensed quasar that appears multiple times in one image.
Webb took this image ~8 hours ago.
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Webb took this image ~8 hours ago.
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January 1, 2024 at 11:52 AM
NIRSpec/IFU observation of HE-0435-1223, a strongly lensed quasar that appears multiple times in one image.
Webb took this image ~8 hours ago.
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Webb took this image ~8 hours ago.
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The NIRSpec instrument revealed exceptionally high levels of deuterium that suggest the comet may have originated in a very cold system much earlier in the history of our galaxy.
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June 22, 2026 at 3:15 PM
The NIRSpec instrument revealed exceptionally high levels of deuterium that suggest the comet may have originated in a very cold system much earlier in the history of our galaxy.
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El instrumento NIRSpec del JWST observa el cometa interestelar 3I/ATLAS francis.naukas.com/2025/08/26/e...
El instrumento NIRSpec del JWST observa el cometa interestelar 3I/ATLAS - La Ciencia de la Mula Francis
El cometa interestelar 3I/ATLAS (C/2025 N1) ha sido observado por el Telescopio Espacial JWST y su espectrómetro NIRSpec a una distancia heliocéntrica de 3.32 UA (unidades astronómicas). El espectro c...
francis.naukas.com
August 26, 2025 at 7:08 PM
El instrumento NIRSpec del JWST observa el cometa interestelar 3I/ATLAS francis.naukas.com/2025/08/26/e...
The light path through ESA's NIRSPEC instrument aboard the JWST's Integrated Science Instrument Module. It performs spectroscopic observations in 600-5000 nm wavelengths.
youtu.be/9EpUSuIhAzE
youtu.be/9EpUSuIhAzE
January 5, 2025 at 11:09 PM
The light path through ESA's NIRSPEC instrument aboard the JWST's Integrated Science Instrument Module. It performs spectroscopic observations in 600-5000 nm wavelengths.
youtu.be/9EpUSuIhAzE
youtu.be/9EpUSuIhAzE
New observations from the James Webb Space Telescope’s (JWST) NIRSpec instrument captured nearly a full day on Uranus during a 15-hour period in late January 2025. spklr.io/6049DIVDL
📸: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)
📸: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)
February 24, 2026 at 5:16 PM
New observations from the James Webb Space Telescope’s (JWST) NIRSpec instrument captured nearly a full day on Uranus during a 15-hour period in late January 2025. spklr.io/6049DIVDL
📸: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)
📸: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)
DG Tau B: NIRSpec & ALMA view.
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![NIRSpec and ALMA maps of DG Tau B outflows: (a) NIRSpec H2 1-0S(1) ?2.12µm integrated surface brightness map, continuum subtracted. (b) NIRSpec average continuum map estimated over a spectral width 1.8 × 10-2 µm centered on the H2 1-0S(1) line. The white dashed circle corresponds to the aperture used to extract the spectra from Fig 4. (c) NIRSpec [Fe ii] ?1.64µm integrated surface brightness map, continuum subtracted. (d) Moment 0 map of the 12CO(2-1) emission observed with ALMA, integrated between (V - Vsys) = +2.15 km s-1 and 8 km s-1 . The contours of the ALMA disk continuum at 232GHz are superimposed. Adapted from DV20. The grey star at offset (0,0) marks the position of the disk continuum emission peak, considered to be the source position. The ?Z axis points towards the red-shifted jet at PA = 295?.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ihmutm466mt4erq6ecm6lgau/bafkreic33bm55vp4oftypbopwobit7omhgnruj2sybscko6qpsqljof4ji)
March 29, 2024 at 4:27 PM
DG Tau B: NIRSpec & ALMA view.
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NIRSpec/IFU observation of the exoplanet UCAC4-690-119045-B. This image was taken by James Webb a year ago.
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December 27, 2023 at 8:52 AM
NIRSpec/IFU observation of the exoplanet UCAC4-690-119045-B. This image was taken by James Webb a year ago.
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1. Reobserve K2-18b multiple times with the same instruments.
An independent JWST program will observe K2-18b four times (with the NIRSpec G395H instrument) from Jan-May 2024, and twice with another instrument (NIRSpec G235H).
This will produce a much more precise spectrum.
An independent JWST program will observe K2-18b four times (with the NIRSpec G395H instrument) from Jan-May 2024, and twice with another instrument (NIRSpec G235H).
This will produce a much more precise spectrum.
September 13, 2023 at 2:32 AM
1. Reobserve K2-18b multiple times with the same instruments.
An independent JWST program will observe K2-18b four times (with the NIRSpec G395H instrument) from Jan-May 2024, and twice with another instrument (NIRSpec G235H).
This will produce a much more precise spectrum.
An independent JWST program will observe K2-18b four times (with the NIRSpec G395H instrument) from Jan-May 2024, and twice with another instrument (NIRSpec G235H).
This will produce a much more precise spectrum.
Constraining QCD axion dark matter from #JWST background observations with MIRI & NIRSpec - cool new paper from Elena Pinetti arxiv.org/abs/2503.11753. Not my wheelhouse - expert opinions v welcome! @chanda.bsky.social @astrokatie.com et al 🔭🧪
First constraints on QCD axion dark matter using James Webb Space Telescope observations
I present the first constraints on QCD axion dark matter using measurements from the James Webb Space Telescope. By utilizing publicly available MIRI and NIRSpec blank-sky observations, originally col...
arxiv.org
March 21, 2025 at 12:02 PM
Constraining QCD axion dark matter from #JWST background observations with MIRI & NIRSpec - cool new paper from Elena Pinetti arxiv.org/abs/2503.11753. Not my wheelhouse - expert opinions v welcome! @chanda.bsky.social @astrokatie.com et al 🔭🧪
I am delighted to point you #PlanetaryScience fans to our latest paper, where we used JWST to study the largest low-albedo objects (dare I call them planetary embryos?) in the main asteroid belt.
Big thanks to @hbhammel.bsky.social for her years of leadership!
iopscience.iop.org/article/10.3...
Big thanks to @hbhammel.bsky.social for her years of leadership!
iopscience.iop.org/article/10.3...
Observations and Quantitative Compositional Analysis of Ceres, Pallas, and Hygiea Using JWST/NIRSpec - IOPscienceSearch
Observations and Quantitative Compositional Analysis of Ceres, Pallas, and Hygiea Using JWST/NIRSpec, Rivkin, Andrew S., Thomas, Cristina A., Wong, Ian, Holler, Bryan, Bates, Helena C., Howell, Ellen S., Ehlmann, Bethany L., Milam, Stefanie N., Hammel, Heidi B.
iopscience.iop.org
January 13, 2025 at 5:45 PM
I am delighted to point you #PlanetaryScience fans to our latest paper, where we used JWST to study the largest low-albedo objects (dare I call them planetary embryos?) in the main asteroid belt.
Big thanks to @hbhammel.bsky.social for her years of leadership!
iopscience.iop.org/article/10.3...
Big thanks to @hbhammel.bsky.social for her years of leadership!
iopscience.iop.org/article/10.3...
These blue stars are not stars but muliple lensed images of a superluminous #supernova, called SN 2025wny.
#Hubble WFC3/UVIS (F475W, F625W, F814W), program 17611
#JWST NIRSpec (blue is oxygen [O III] line, red is H-alpha, both background subtracted), program 12510
www.wis-tns.org/object/2025wny
#Hubble WFC3/UVIS (F475W, F625W, F814W), program 17611
#JWST NIRSpec (blue is oxygen [O III] line, red is H-alpha, both background subtracted), program 12510
www.wis-tns.org/object/2025wny
April 21, 2026 at 6:09 PM
These blue stars are not stars but muliple lensed images of a superluminous #supernova, called SN 2025wny.
#Hubble WFC3/UVIS (F475W, F625W, F814W), program 17611
#JWST NIRSpec (blue is oxygen [O III] line, red is H-alpha, both background subtracted), program 12510
www.wis-tns.org/object/2025wny
#Hubble WFC3/UVIS (F475W, F625W, F814W), program 17611
#JWST NIRSpec (blue is oxygen [O III] line, red is H-alpha, both background subtracted), program 12510
www.wis-tns.org/object/2025wny
ESA/Webb (@esa.int) images (Sep 6, 2022)
NIRSpec captures the Tarantula Nebula, showcasing a young star emerging from a dense pillar of dust and gas.
esawebb.org/images/weic2212d/
NIRSpec captures the Tarantula Nebula, showcasing a young star emerging from a dense pillar of dust and gas.
esawebb.org/images/weic2212d/
September 27, 2026 at 7:00 PM
ESA/Webb (@esa.int) images (Sep 6, 2022)
NIRSpec captures the Tarantula Nebula, showcasing a young star emerging from a dense pillar of dust and gas.
esawebb.org/images/weic2212d/
NIRSpec captures the Tarantula Nebula, showcasing a young star emerging from a dense pillar of dust and gas.
esawebb.org/images/weic2212d/
JWST has observed the exoplanet K2-18b transit on multiple occasions with different instruments.
The first JWST observations (with the NIRISS and NIRSpec instruments), found a clear detection of CH4 (5σ) and also reported CO2 (3σ) and DMS (1σ).
Madhusudhan+2023:
iopscience.iop.org/article/10.3...
The first JWST observations (with the NIRISS and NIRSpec instruments), found a clear detection of CH4 (5σ) and also reported CO2 (3σ) and DMS (1σ).
Madhusudhan+2023:
iopscience.iop.org/article/10.3...
April 17, 2025 at 4:08 PM
JWST has observed the exoplanet K2-18b transit on multiple occasions with different instruments.
The first JWST observations (with the NIRISS and NIRSpec instruments), found a clear detection of CH4 (5σ) and also reported CO2 (3σ) and DMS (1σ).
Madhusudhan+2023:
iopscience.iop.org/article/10.3...
The first JWST observations (with the NIRISS and NIRSpec instruments), found a clear detection of CH4 (5σ) and also reported CO2 (3σ) and DMS (1σ).
Madhusudhan+2023:
iopscience.iop.org/article/10.3...
While the researchers did expect an expanding cloud of cooler dust around the star, a look with Webb's powerful NIRSpec revealed a hot circumstellar disk of molecular gas closer in. (6/6)
NASA Webb's Autopsy of Planet Swallowed by Star Yields Surprise
webbtelescope.org
April 10, 2025 at 6:18 PM
While the researchers did expect an expanding cloud of cooler dust around the star, a look with Webb's powerful NIRSpec revealed a hot circumstellar disk of molecular gas closer in. (6/6)
OH MY GOD!! WE CAN SEE AURORAS ON NEPTUNE FOR THE FIRST TIME THANKS TO JWST!!!!
March 26, 2025 at 4:13 PM
OH MY GOD!! WE CAN SEE AURORAS ON NEPTUNE FOR THE FIRST TIME THANKS TO JWST!!!!
“The nested morphology of disk winds from young stars revealed by JWST/NIRSpec observations”
I'm so turned on rn.
I'm so turned on rn.
October 19, 2024 at 6:19 PM
“The nested morphology of disk winds from young stars revealed by JWST/NIRSpec observations”
I'm so turned on rn.
I'm so turned on rn.
Callisto, seen through the NIRSpec (IFU) instrument of JWST.
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September 22, 2024 at 7:14 PM
Callisto, seen through the NIRSpec (IFU) instrument of JWST.
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