Mars 4/5 M-73 Mars-orbiter spacecraft family
The Mars 4/5 family comprised twin Soviet Mars probes launched in 1973; Mars 5 entered orbit and returned planetary data while Mars 4's capture burn failed, preserving the shared design's role in the Soviet Mars-orbiter campaign.
Follow this vehicle family
Alerts for directly linked future launches and major activity.
Identity
- Aliases
- Mars 4Mars 5M-733MS
- Family Name
- Mars 4/5
- Full Name
- Mars 4/5 M-73 Mars-orbiter spacecraft family
- Roles
- interplanetary_probeorbiter
- Status
- retired
- Type
- spacecraft
Details
- Description
- The Mars 4/5 family comprised twin Soviet Mars probes launched in 1973; Mars 5 entered orbit and returned planetary data while Mars 4's capture burn failed, preserving the shared design's role in the Soviet Mars-orbiter campaign.
- First Flight Year
- 1,973
- Last Flight Year
- 1,974
Links
Assets & Meta
- Creation Time
- August 6, 2026 at 17:15:00 UTC
- Updated Time
- August 6, 2026 at 17:15:00 UTC