| Acronym | Meaning |
 | SLS | Space(lab) Life Sciences |
| ACRV | Astronaut Crew Rescue Vehicle |
| TAI | International Atomic Time |
| SSI | Solid-State Imager / Space Studies Institut |
| NIST | National Institute For Standards And Technology |
| IBSS | Infrared Background Signature Survey |
| U3P | Union Pour La Promotion De La Propulsion Photonique |
| ISO | International Standards Organization |
| ISRO | Indian Space Research Organisation |
| CBR | Cosmic Background Radiation |
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