Terran R
In DevelopmentRelativity Space · United States · First flight Late · Reusable first stage
A medium-to-heavy lift reusable launch vehicle incorporating 3D-printed manufacturing. Following the retirement of Terran 1 after its test flight, Relativity shifted focus entirely to Terran R for the medium-lift reusable market.
Launch price
Not published
Payload to LEO
23,500 kg
5,500 kg to GTO
Career record
No counted launches yet
as of 2026-10-09
Next launch
NET 2026
Mars Lander
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Subscribe in your calendar (every Terran R launch): Apple or OutlookGoogleDownload .icsCalendar entries move when launch times move. A launch known only to the month appears once it has a day.
More launch calendarsLaunch activity, live
From SpaceNexus's launch tracker (tracked since Dec 31, 2026); outcomes recorded as each flight lands. Career totals above are the vehicle's full history.
Last 90 days
0
launches flown
Tracked flights
0
0 success · 0 partial · 0 failed
Tracked success rate
–
full successes / attempts; partial failures are not successes
On the manifest
4
upcoming launches
Upcoming
Specifications
| Height | 86.6 m |
| Diameter | 5.4 m |
| Stages | 2 |
| Engines | 13x Aeon R (1st) + 1x Aeon Vac (2nd) |
| Propellant | CH4 / LOX (Methalox) |
| Fairing diameter | 5.4 m |
| Payload to LEO | 23,500 kg |
| Payload to GTO | 5,500 kg |
| Reusable | Yes (first stage) |
| First flight | Late 2026 (planned) |
| Last flight | – |
| Variants seen on the manifest | Terran R |
Frequently asked
How much does a Terran R launch cost?
Relativity Space has not published a list price for Terran R.
When is the next Terran R launch?
The next tracked Terran R launch is Mars Lander, NET 2026 from Cape Canaveral SFS, FL, USA. Dates move; Mission Control carries the live countdown.
How reliable is Terran R?
Terran R has no counted launches yet as of 2026-10-09, so it has no career success rate. The tracked flights below come from SpaceNexus's launch tracker.
How much can Terran R carry?
23,500 kg to low Earth orbit, 5,500 kg to geostationary transfer orbit.
Status
developmentas of 2026-09-06
Relativity Space's reusable medium-lift rocket, in development; no first flight on the manifest.
Next: First flight.
Sources: Relativity Space
Public commitments
On the Promise Ledger: 1 entry: 1 revised. Exact words, primary sources, deadlines and outcomes.
What the statuses mean
- Revised:
- the date or quantity was moved before it came due.
The whole Promise Ledger · same rules for everyone, how entries are scored