COSI (Compton Spectrometer and Imager) | Simple Site

COSI (Compton Spectrometer and Imager)

COSI Telescope Comes Together

UC Berkeley engineers and managers watch as the COSI (Compton Spectrometer and Imager) detector assembly is slowly raised from a table in this July 8, 2026, image. The four pieces of silver material on the top of the detector box cover the flex circuits, which carry signals from the detectors to the readout electronics. COSI […]

Posted September 18, 2026

COSI (Compton Spectrometer and Imager)

Astrophysics Division

Astrophysics Explorers Program

Science Mission Directorate

Space Operations Mission Directorate

NASA Awards Launch Services Contract for Space Telescope Mission

NASA has selected Space Exploration Technologies Corporation (SpaceX) of Hawthorne, California, to provide launch services for the COSI (Compton Spectrometer and Imager) mission. The firm-fixed-price contract has a value of approximately $69 million, which includes launch services and other mission related costs.

Posted July 2, 2024

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Bruce McCandless

2

Prizes, Challenges & Crowdsourcing

6

Jonny Kim

5

Shannon W. Lucid

1

2

STEREO (Solar TErrestrial RElations Observatory)

4

Mars Climate Orbiter

1

Ceres

2

Small Satellite Missions

27

Digital Information Platform

9

STS-41D

1

Marshall Earth Sciences

29

Neptune-Like Exoplanets

8

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35

TRACERS

1

GOES (Geostationary Operational Environmental Satellite)

13

X-ray Astronomy

5

AIM (Aeronomy of Ice in the Mesosphere)

1

Aura

2

Physical Sciences Program

4

Ronald E. McNair

1

301

Low-Earth Orbit Economy

10

Convergent Aeronautics Solutions

3

Space Technology Research Grants

17

Edward G. Gibson

1

1

MUSE (Multi-slit Solar Explorer)

1

Office of the General Counsel (OGC)

36

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112

Galaxies

211

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17

Hi-Rate Composite Aircraft Manufacturing

4

Apollo 9

2

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4

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11

40

Human Research Program

29

9

3I/ATLAS

1

Artemis 4

30

Owen K. Garriott

1

Read it!

3

ICESat (Ice, Clouds and Land Elevation Satellite)

1

Landsat 8 / LDCM (Landsat Data Continuity Mission)

35

Climate Modeling

5

6

E-Books

5

STS-88

1

Meetings, Workshops & Conferences

1

Night Sky Network

39

Fission Surface Power (FSP)

2

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3

Grades K - 4 for Educators

13

Ames Earth Science Division

1

6

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70

SBIR STTR

8

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285

Lunar Trailblazer

4

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13

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6

Star-forming Nebulae

16

Enceladus

4

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1

NASA Home & City

1

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8

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9

Gateway Program

21

2

Native American Heritage Month

7

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95

The Sun

67

56

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38

13

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115

People of Goddard

81

Richard A. Mastracchio

1

Integrated Aviation Systems Program

21

Lenticular Galaxies

4

Commercial Resupply

49

Space Communications & Navigation Program

48

Earth System Observatory (ESO)

5

SunRISE (Sun Radio Interferometer Space Experiment)

3

MinXSS (Miniature X-ray Solar Spectrometer)

1

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46

For Researchers

12

Vegetable Production System (VEGGIE)

1

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5

APOD

61

Budget & Annual Reports

6

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10

José M. Hernández

1

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2

DAVINCI (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging)

4

Strategic Integration and Management Division

1

Mars Exploration Program

10

Chandra X-Ray Observatory

82

Small Spacecraft Technology Program

20

Digital Transformation (DT)

7

STS-51A

1

Marshall Heliophysics & Planetary Science

8

Neutral Buoyancy Lab

3

Exploration Park

2

Tracking and Data Relay Satellite (TDRS)

2

GOES-R

3

3

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6

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14

1

Rosalind Franklin (Rover)

1

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18

Lucy

10

2

34

Eileen M. Collins

2

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11

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88

2

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21

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78

Virgil I. Grissom

3

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4

1

26

1

Quesst: The Flights

5

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2

Kjell N. Lindgren

4

AcrimSat (Active Cavity Irradiance Monitor Satellite)

1

Artemis 5

8

6

Red Dwarfs

1

ICESat-2 (Ice, Cloud and land Elevation Satellite-2)

6

Landsat 9

46

Climate Science

7

2

E. Michael Fincke

1

STS-9

2

Mesosphere

3

NISAR (NASA-ISRO Synthetic Aperture Radar)

23

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2

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1

GRAIL (Gravity Recovery And Interior Laboratory)

1

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234

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46

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30

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254

1

MAF Announcements

1

5

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8

Starburst

1

1

1

NASA Innovative Advanced Concepts (NIAC) Program

39

Events

20

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1

Gateway Space Station

28

Water & Energy Cycle

5

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