| State | Luxembourg |
| Treaty | Outer Space Treaty |
| Action Type | Ratification |
| Depositary | Government of the United States of America |
| Date | 17 January 2006 |
| Other Actions | Ratification on deposit with London — 17 January 2006 Signature on deposit with London — 31 January 1967 Ratification on deposit with Moscow — 17 January 2006 Signature on deposit with Moscow — 27 January 1967 Signature on deposit with Washington — 27 January 1967 |