COSI

COSI (Compton Spectrometer and Imager) is a NASA Small Explorer satellite mission to study the gamma-ray sky planned for launch on a Falcon 9 rocket in 2027.

[COSI @COSITelescope]

John Tomsick explains how COSI will search the skies for gamma-rays in hopes of learning more about black holes and neutron stars.

[COSI @COSITelescope]

COSI was covered in this article published by @ConversationUS. One of COSI’s science objectives—to seek out the source of the gamma ray signature of matter/antimatter annihilation—may help reveal whether the center of our galaxy is rich in dark matter.
https://t.co/7sj8pCv1hu

[COSI @COSITelescope]

3D printed COSI model assembly.

[NASA Universe @NASAUniverse]

We’ll soon have more eyes on the gamma-ray sky!

Our COSI (Compton Spectrometer and Imager) mission, launching in 2027, is a wide-field gamma-ray telescope that will study extreme objects, environments, and events in the Milky Way and beyond. Meet COSI: https://t.co/TL8OvjgFO5

[Space Sciences Laboratory @ucbssl]

Big Give is TODAY! 🎉Learn more about SSL's history below, and please consider donating to support our mission in education, innovation and discovery.👇
https://t.co/oiDTSnydB4

[COSI @COSITelescope]

There's a lot of antimatter at the center of our galaxy. Where's it coming from? John Tomsick, PI of COSI, aims to find out.

[COSI @COSITelescope]

What's a Compton telescope? John Tomsick, PI of COSI, explains.

[COSI @COSITelescope]

Germanium detectors happily installed at the top of the COSI payload. Once they are enclosed in the cryostat shell, a vacuum pump is used to evacuate the volume, and the detectors are cooled. After applying high voltage, they will be able to detect gamma rays!

[COSI @COSITelescope]

COSI is integrating the flight model (the instrument that will go into space!). This shows the 16 germanium detectors installed in the detector holder assembly and the 2 engineers that performed the installation.

[COSI @COSITelescope]

Getting back to in-person meetings. The COSI team at SSL had a great one with NASA HQ and Explorers

[COSI @COSITelescope]

Jarred Roberts at the TeV Particle Astrophysics 2022 conference talking about what I can do as a satellite!

[COSI @COSITelescope]

@antimatterhorn1 join us😎

[Thomas Siegert @antimatterhorn1]

Job opportunities (postdoc and PhD) in high-energy astrophysics, working with the @COSITelescope !

Check out here: https://t.co/Bre5HvHCAm

[COSI @COSITelescope]

Congrats Hannah Gulick on her Student Poster Award at #HEAD19!

[COSI @COSITelescope]

Thank you @onplanetnine for interviewing Dr. John Tomsick on COSI! https://t.co/hXV19IsqXo

[COSI @COSITelescope]

Today we met more of our international collaborators. Happy to expand the Science Team :)

[COSI @COSITelescope]

Our first of many COSI satellite science team meetings!

[COSI @COSITelescope]

@SuperTigerLDB @NSF Great news

[COSI @COSITelescope]

@SuperTigerLDB Hypnotic

[COSI @COSITelescope]

@SuperTigerLDB Very fancy!