Low Earth orbit
COSI (Compton Spectrometer and Imager)
COSI is NASA’s wide-field gamma-ray telescope mission for studying energetic phenomena, matter-antimatter creation, and stellar evolution.
Planned; NASA now targets an August 2027 Falcon 9 launch from Cape Canaveral Space Force Station, though the integration schedule could still slip.
Official mission site ↗The mission
COSI (Compton Spectrometer and Imager) is a NASA astrophysics mission designed to study energetic gamma-ray phenomena across the Milky Way and beyond. The telescope will investigate the creation and destruction of matter and antimatter, nucleosynthesis, and the late stages of stellar evolution with a wide-field gamma-ray instrument.
The launch
- Launch
- August 2027
- Launch location
- Cape Canaveral Space Force Station, FL, USA
- Launch vehicle
- Falcon 9 Block 5
- Orbit
- Low Earth Orbit
Mission timeline
NASA mission page
Current overview
NASA’s science mission page describes COSI and its astrophysics objectives.
Open milestone source ↗Objectives
- 01
Study gamma-ray emission from energetic astrophysical sources across the Milky Way and beyond.
- 02
Probe the creation and destruction of matter and antimatter in the universe.
- 03
Investigate nucleosynthesis and the final stages of stellar evolution.
Spacecraft
COSI (Compton Spectrometer and Imager)
Wide-field gamma-ray telescope spacecraft for astrophysics observations.
- Manufacturer
- Northrop Grumman / university-led team
Gallery
0 images from COSI (Compton Spectrometer and Imager).
No mission imagery is available yet.
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