Back to Vehicle Families

COS-B European gamma-ray observatory spacecraft

COS-B was the first European mission dedicated to gamma-ray sources, launched in 1975 with a single gamma-ray telescope and operated successfully until April 1982.

Follow this vehicle family

Future launches and major activity directly linked to this vehicle family.

Identity

Aliases
COS-BCos BCosmic Observation Satellite B
Family Name
COS-B
Full Name
COS-B European gamma-ray observatory spacecraft
Roles
orbiterobservatoryresearch
Status
retired
Type
spacecraft

Details

Description
COS-B was the first European mission dedicated to gamma-ray sources, launched in 1975 with a single gamma-ray telescope and operated successfully until April 1982.
First Flight Year
1,975
Last Flight Year
1,982
Operator

Links

Assets & Meta

Creation Time
August 13, 2026 at 16:59:34 UTC
Updated Time
August 14, 2026 at 21:43:30 UTC