Reposted by Julien GirardSpace Telescope Science Institute @stsci.edu · 27/08/2026NASA and SpaceX are targeting #NASARoman’s liftoff for no earlier than 7:26 a.m. EDT Sunday, August 30, from Launch Complex 39A at the agency’s Kennedy Space Center in Florida. 🎥 Launch coverage begins at 6:20 a.m. 🔭 nasa.govNASA Sets Coverage for Roman Space Telescope Launch from Florida - NASACoverage plans are ready for NASA's Nancy Grace Roman Space Telescope prelaunch and launch activities. Roman is NASA's next-generation observatory designed to 113745
Reposted by Julien GirardSarah E Moran @offallingstars.bsky.social · 29/04/2026"We do what we can with the universe we've been given" (he was talking about direct imaging of exoplanets, but thta's some pretty profound and wide-ranging wisdom from @juliengirard.space at the BDExoCon meeting today) 1133
Julien Girard @juliengirard.space · 07/04/2026So so so deserved, happy for you William @balmer.bsky.social !! 090
Julien Girard @juliengirard.space · 07/04/2026It’s really refreshing nowadays to hear the #artemis2 crew deliver humanist, universally good and sensible words while doing something extraordinary. The cognitive dissonance is real, what humanity can achieve and what humanity can destroy. 000
Reposted by Julien GirardDr. Skylar Grayson @skylargrayson.bsky.social · 04/04/2026NASA just dropped this image of Artemis II astronaut Christina Koch looking back at us. The first woman to ever see our planet in its entirety. I’m not crying you’re crying 🥹🔭🧪 📸: NASA 344362917568
Reposted by Julien GirardAmerican Astronomical Society (AAS) @aas.org · 25/02/2026AAS President Dara Norman and Past President Kelsey Johnson published an opinion article in SpaceNews today titled "The future of astronomy is both on Earth and in space." The article is signed by 15 past, current, and incoming AAS presidents. 0125
Julien Girard @juliengirard.space · 23/02/2026... before, kinda "every 10-ish years thing" but I didn't make it. 4 Months forwards, here it is, my new website is up and I geeked out a bit with github, html, AI... I wanted a single do it all html file and yet something that looked different than the templates almost everyone seemed to use 🙂 🫠 🙃 000
Julien Girard @juliengirard.space · 23/02/2026On October 19 2025 it was my 20th PhD anniversary, believe it or not, I may have well consumed a bit of the second part of my career. I didn't feel like celebrating or posting anything then. Meh, just another year. I had been meaning to update my professional website.... www.juliengirard.spacejuliengirard.spaceJulien H. Girard, astronomer, AURA Scientist at the Space Telescope Science Institute (STScI) 140
Julien Girard @juliengirard.space · 13/01/2026Enrique (lead author) and I met back in 2008 at a school in Mexida, Mexico! We finally have a paper together. Before exoplanets, my plan was to study active galactic nuclei with adaptive optics. 18 years later, I did it from space (unprecedented combination of sensitivity and spatial resolution). 041
Julien Girard @juliengirard.space · 13/01/2026Our "Unprecedented Look Into Heart of Circinus Galaxy", an AGN using JWST/NIRISS Aperture Masking Interferometry (AMI) mode. NASA @stsci.edu Press Release: science.nasa.gov/missions/web... Nature Comm. paper: www.nature.com/articles/s41... Props to Anand Sivaramakrishnan who did so much for AMI! 191
Julien Girard @juliengirard.space · 13/01/2026Enrique (lead author) and I met back in 2008 at a school in Mexida, Mexico! We finally have a paper together. Before exoplanets, my plan was to study active galactic nuclei with adaptive optics. 18 years later, I did it from space (unprecedented combination of sensitivity and spatial resolution).lnkd.inLinkedInThis link will take you to a page that’s not on LinkedIn 000
Julien Girard @juliengirard.space · 09/12/2025Debris disk around TWA 20, a M star, imaged with JWST/NIRCam coronagraph at 2µm! Palatnick et al. 2025 arxiv.org/abs/2510.20216 020
Julien Girard @juliengirard.space · 05/12/2025Very true! We struggle to have more than one each year (too many meetings...) but we have a very large crowd each time and nice venues. The concentration of exoplanet scientists in PA/DE/MD/DC/VA is amazing, similar to California's It's one full Friday, informal, no fee, a amazing platform for ECRs 010
Julien Girard @juliengirard.space · 05/12/2025The CHesapeake bay area EXOplanet Meeting #CHEXO12 has started @jhuapl.bsky.social with a nice and big crowd despite the snow! www.chexo.org #exoplanets 0131
Julien Girard @juliengirard.space · 12/11/2025Good news! En hora buena! I know this is probably not the time yet but choosing Tenerife (or even Madrid or Barcelona) for Spanish HQ would be wise, more attractive for scientists, engineers, staff and their families :) No offense for Santa Cruz de La Palma, looks beautiful!! 030
Julien Girard @juliengirard.space · 11/11/2025And on Keswick Rd yet again. I guess it’s wind + dry weather + leaves + restarting furnaces ??? 110
Reposted by Julien GirardKevin Hainline @kevinhainline.bsky.social · 11/11/2025this is from a paper I'm putting together of a 300 K brown dwarf and it's kind of insane how similar it is 251
Julien Girard @juliengirard.space · 05/11/2025Jupiter aurora movie by JWST NIRCam! www.youtube.com/watch?v=b1Fo...youtube.comWow! Jupiter's auroras captured by the James Webb Space TelescopeYouTube video by VideoFromSpace 062
Reposted by Julien GirardMax Planck Institute for Extraterrestrial Physics @mpe-garching.bsky.social · 21/10/2025🤩The @4most-eu.bsky.social (#4MOST) facility on @eso.org VISTA telescope in Chile achieved first light. #MPE scientists played a leading role in developing the Operations System, enabling to link #eROSITA’s X-ray universe with large-scale structure of galaxies. ➡️ More: www.mpe.mpg.de/8102833/news...mpe.mpg.de4MOST Begins its Journey of Cosmic Discovery4MOST embarks on a cosmic journey, capturing spectra of thousands of celestial objects simultaneously, unlocking secrets of the universe. 0135
Reposted by Julien Girard4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social · 21/10/2025First Light for 4MOST! The 4-metre Multi-Object Spectroscopic Telescope (4MOST) has captured its very first spectra! Video Credit: AIP/R. de Jong, AIP/K. Riebe, AIP/A. Saviauk, CRAL/J.-K. Krogageryoutu.beFirst Light for 4MOST!YouTube video by 4-meter Multi-Object Spectroscopic Telescope 32917
Reposted by Julien GirardMatthew Kenworthy @mattkenworthy.bsky.social · 09/09/2025Two papers announcing the discovery of a directly imaged 6 Jupiter mass planet around binary system HD 143811 AB Squicciarini+ and Jones+ in Sco-Cen - Keck, Gemini and VLT all imaging this companion and confirmed with several years of common proper motion. #astrodon #exoplanet #exosci 0458
Reposted by Julien GirardMeg Schwamb @megschwamb.bsky.social · 25/08/2025JWST successfully observed interstellar object (ISO) 3I/ATLAS. Interesting results. The composition of the coma could be due to a few different scenarios. Additional JWST observations of the object closer to the sun are needed. science.nasa.gov/blogs/3iatla...science.nasa.govNASA’s Webb Space Telescope Observes Interstellar Comet - NASA ScienceNASA’s James Webb Space Telescope observed interstellar comet 3I/ATLAS Aug. 6, with its Near-Infrared Spectrograph instrument. The research team has been 75218
Julien Girard @juliengirard.space · 26/08/2025Amazing!!!! A NEW gap-carving planet! So far, we haven't been able to image many. WISPIT 2b, like PDS 70 b&c is imaged at many wavelengths from 656nm (H⍺, blue here) to 3.7µm (👏MagAO-X @xwcl.science.web.brid.gy). VLT/SPHERE polarized scattered light at 1.6µm+reddish planet at 2.2µm in the gap, wow! 0198
Reposted by Julien GirardSETI Institute @setiinstitute.bsky.social · 08/08/2025Next #SETILive: Closest Exoplanet Yet? TODAY, 8 August, 3:15 pm PDT Join astronomers @allplanets.bsky.social and Julien Girard (STScI) as they discuss recent evidence of a Saturn-mass gas giant orbiting Alpha Centauri A—located just 4 light-years away. 🧪 🔭 WATCH LIVE: buff.ly/TplMAD5 12811
Julien Girard @juliengirard.space · 07/08/2025Wow, Tonight I just completed 8 years @stsci.edu. I love it 😊 I realize I now have worked there in Baltimore as much as I spent @eso.org in Chile. 16 years as scientist, collectively supporting instruments, operations, maximizing the science return at major observatories, ground and space! 190
Reposted by Julien GirardKelly Lepo @kellylepo.bsky.social · 01/08/2025The Space Telescope Science Institute's MAST archive contains 300 million astronomical observations from over 23 different missions. Here is an animation showing how the archive has built up over time. Credit: Julie Imig, STScI 26524
Julien Girard @juliengirard.space · 29/07/2025Experiencing FOMO big time, not attending #HWO2025) I am glad a lot is youtube broadcasted. I am especially eager to watch these panels sessions on ground/based synergies and on how the #RomanCoronagraph will inform the design choices of the HWO coronagraphs www.youtube.com/watch?v=7Vq3... 000
Julien Girard @juliengirard.space · 23/07/2025Who saw this coming? Maybe that should go into the discussion of what @eso.org will do after it's ELT, an ELT-N with a TMT design? I think as a community what we all want is A >25m telescope in the North. 030
Julien Girard @juliengirard.space · 23/06/2025"This is just a small peek" In 9 hours, livestream! 000
Julien Girard @juliengirard.space · 10/06/2025Habemus CSIT for the Habitable Worlds Observatory (HWO) science.nasa.gov/astrophysics...science.nasa.govHabitable Worlds Observatory News - NASA ScienceBuilding on the foundation of the Habitable Worlds Observatory (HWO) Technology Maturation Project Office (TMPO), NASA is now establishing the HWO Community 021
Julien Girard @juliengirard.space · 10/06/2025Please watch the @aas.org Press Conference where @balmer.bsky.social presented this thrilling result: THE NEW(even if expected from astrometry)LY IMAGED, COLD (~2ºC), MATURE giant exoplanet 14 Her c with JWST/NIRCam!!! Congrats Daniella, William and the whole team 😀 www.youtube.com/live/Z7niXAH... 1194
Reposted by Julien GirardMatthew Kenworthy @mattkenworthy.bsky.social · 10/06/2025Dr. Kielan Hoch has a #Nature paper on #JWST observations of the star YSES 1 with its two gas giant planets. She and her team have discovered a circumplanetary disk around the larger 1b and silicate clouds in 1c. Wonderful results and more to come - watch this space! #exoplanet #astrodon 05117
Julien Girard @juliengirard.space · 14/05/2025Chen Xie, Christine Chen et al., colleagues of our EPSIG group at STScI/JHU just published water ice detections with #HighContrast Near-Infrared (IFU) Spectroscopy with #JWST/NIRSpec!! 020
Julien Girard @juliengirard.space · 27/03/2025Je suis curieux des propositions et mécanismes pour accueillir (attirer?) des chercheurs/scientifiques en France et en Europe. Comment le faire sans revaloriser les chercheurs en France? A 50% du salaire US, je prends! À 25%, non. 000
Julien Girard @juliengirard.space · 26/03/2025I could not help it… (note, the top picture was taken in Jura, France by the weather forecast group a météo franc-comtoise) 120
Julien Girard @juliengirard.space · 25/03/2025We'll be presenting this Coronagraphy JWebbinar with Aarynn Carter and Jonathan Aguilar, register here before March 30 if you're interested. #JWST #Coronagraph www.stsci.edu/jwst/science... under 2025, it's number 40 030
Reposted by Julien GirardJWST Observer @jwstobserver.bsky.social · 24/03/2025A new series of python-based Jupyter notebooks are now available for all four #JWST instruments and 13 observing modes. Read more: ow.ly/bjZ850VnlG8 1145