The #JWST Transiting Exoplanet Early Release Science Team is excited to share the latest science results from observations of the exoplanet #WASP39b, described in 5 papers released this morning. 🧵.📷Melissa Weiss/CfA

Honored our Transiting Exoplanet ERS science is featured on the cover of Nature 614 7949. Also grateful they agreed to show a #JWST spectrum. For the record, I tried to get them to show a graphical representation instead of cartoon. That was a non-starter, but I’ll keep trying!

Tune in to SETI Live tomorrow to hear from the early career scientists who led some of the first #JWST exoplanet studies.

Congratulations to our amazing Astrobiology Science Communications Fellow @isabel_swafford for making the front page of the SJ @mercnews!.

RT @Victorshi2020: Don't get me wrong: I'm ecstatic that Raphael Warnock has been re-elected to the U.S. Senate. But this race shouldn't ha….

Before we know what life is, we must know what life is not. Giant planets are laboratories for studying the formation & evolution processes that produce the diversity of worlds we see. WASP-39b is the crown jewel of giants so far thanks to #JWST. Vote #WASP39b!.

Producers sometimes ask me who would be good on camera to talk about exoplanet science, but my recs are less likely to be taken seriously w/o examples of prior work online. If you’re interested in SciComm, volunteer for public outreach early and often!.

Doh! I forgot the "b". Phase curve of WASP-43 b!.

At last! The final Transiting Exoplanet Early Release Science Observation: the phase curve of WASP-43.

A wonderful thread by @afeinstein20 that shows more of the details of #JWST #NIRISS SOSS data analysis, from pixels to planetary spectrum of #WASP39b!.

RT @ShamiTsai: Words cannot express the excitement of the first detection of sulfur in an exoplanet atmosphere. What makes it even more int….

These are exciting times! Thanks for tuning in!.

Over 75 exoplanets will be observed in Cycle 1 alone. Mark Clampin told congress last week that JWST could last 20 years. Perhaps we'll have spectra for >1000 exoplanets by the end. Imagine what we'll learn!.

I like to think #JWST will enable scientific discovery akin to the stellar classifications of the Harvard Computers. But for planets. And the women will get fair pay this time.

Happy Reading!..

With this release, the community will have access to data products, analysis notebooks and best practices published via Zenodo. We hope this will be helpful for writing amazing proposals to use JWST in Cycle 2!

10) Data from different instruments overlap in wavelength and appear to be consistent. We’ll be able to say more when we stitch them all together to yield one continuous spectrum from 0.5 to 5 microns. Expect those results early 2023.

9) We have not yet identified a noise floor for JWST timeseries data. As we average more data together, the precision continues to improve. But a true test will have to come from observations of a brighter star. Stay tuned!.

7) JWST yields unprecedented precision and stability in spectroscopic timeseries data. 8) There are no obvious and/or unexpected systematic errors that limit the interpretation of the data.

6) The telescope and its instruments are performing at or better than pre-launch expectations. This finding is in agreement with the commissioning test on the exoplanet HAT-P-14 b described in Espinoza et al. 2022.