Promise Ledger

Relativity Space: public spaceflight commitments

Launch vehicle company (Terran R). These are the dated public commitments by Relativity Space and its people that we could source to a primary, with what happened.

2 entries: 2 revised.

Plain counts, not a grade or a ranking. A short record is not a complete one. Updated Sep 28, 2026; each entry shows the date it was last checked against its source; scoring rules on the methodology page.

This first release is a selection, and a short record is not a complete record. Each programme milestone enters the ledger at its earliest dated public commitment we can find in a primary source, for governments and companies alike. Later dated commitments for the same milestone are shown on that one entry as a revision chain, oldest first, rather than as separate entries.

Entries

Met

Met late

Missed

Revised

Pending

What the statuses mean

Revised:: the date or quantity was moved before it came due.

Entries, soonest deadline first

Terran 1 first orbital launch by the end of 2020
Revised · worded as a target
First flight · Relativity Space
“Relativity is on track to conduct its first full orbital launch by the end of 2020”
Said Jan 17, 2019. Source: Relativity Space: Relativity Wins Right of Entry for Rocket Launch Site at Cape Canaveral (Jan 17, 2019)
Context: Release on the Launch Complex 16 right of entry at Cape Canaveral; the rocket is Terran 1.
Deadline
“by the end of 2020”, read as Dec 31, 2020 (year precision)Worded as a target ("targeting", "plan", "expect", "no earlier than")
Counts as met when
Terran 1 lifts off for the first time.
Later dated commitments for the same milestone
1. Nov 23, 2020, Tim Ellis (Co-founder and CEO, Relativity Space): “We are on track to launch our first Terran 1 rocket to orbit next year with existing capital on our balance sheet.” (new date as stated: next year, read as Dec 31, 2021). RevisedSource: Relativity Space: Relativity Space Closes $500M Series D Financing as It Solidifies Sector-Leading Momentum (Nov 23, 2020)
2. Aug 20, 2021: “Terran 1’s demonstration launch is now set for early 2022 from Cape Canaveral LC-16.” (new date as stated: early 2022, read as Jun 30, 2022). RevisedSource: Relativity Space on X: A few updates on #Terran1 (Aug 20, 2021)
3. Dec 10, 2021: “As we prepare to launch from #CapeCanaveral in 2022” (new date as stated: in 2022, read as Dec 31, 2022). Met lateSource: Relativity Space on X: Rainbird test at LC-16 (Dec 10, 2021)
4. Feb 22, 2023: “Catch us live at Launch Complex 16 in Cape Canaveral, FL on March 8, 2023 to watch the world’s first 3D printed rocket fly.” (new date as stated: March 8, 2023, read as Mar 8, 2023). Met lateSource: Relativity Space on X: Wen Launch? March 8, 2023 (Feb 22, 2023)
The counts use the original commitment. The latest date in the chain stands as: met late.
Outcome: Terran 1 (GLHF) lifted off from LC-16 late on March 22 (EDT), 2023-03-23 UTC, survived Max-Q and completed stage separation, and did not reach orbit. (Mar 23, 2023, 15 days after the latest deadline)
Outcome source: Space.com: Relativity Space launches world's first 3D-printed rocket on historic test flight, but fails to reach orbit (Mar 23, 2023)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Terran R launches starting in 2024
Revised · worded as a commitment
First flight · Relativity Space
“Starting in 2024, Terran R will launch from Launch Complex 16, the company’s site at Cape Canaveral”
Said Jun 8, 2021. Source: Relativity Space: Relativity Unveils Its Plans for Terran R, the First Fully Reusable, Entirely 3D-Printed Rocket (Jun 8, 2021, paragraph beginning 'Terran R will be outfitted with seven 3D-printed Aeon R rocket engines')
Deadline
“Starting in 2024”, read as Dec 31, 2024 (year precision)Worded as a commitment ("will")
Counts as met when
Terran R lifts off for the first time.
Later dated commitments for the same milestone
1. Apr 12, 2023: “Starting in 2026, Terran R will launch from Space Launch Complex 16, the company’s orbital launch site at Cape Canaveral, Florida.” (new date as stated: Starting in 2026, read as Dec 31, 2026). PendingSource: Relativity Space: Relativity Space Shares Updated Go-to-Market Approach for Terran R, Taking Aim at Medium to Heavy Payload Category with Next-Generation Rocket (Apr 12, 2023)
2. Mar 10, 2025: “We plan to launch Terran R from Launch Complex 16 in Cape Canaveral, Florida beginning in late 2026.” (new date as stated: beginning in late 2026, read as Dec 31, 2026). PendingSource: Relativity Space: Relativity Space Achieves Major Design and Production Milestones for Terran R, Demonstrating Momentum Towards Launch (Mar 10, 2025, closing paragraph)
The counts use the original commitment. The latest date in the chain stands as: pending.
Outcome: Relativity's August 2026 update (published 2026-09-11) reports all engines installed on the thrust structure and stage two heading to hot fire, with no launch date given.
Outcome source: Relativity Space: August 2026 Company Update (Sep 11, 2026)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·

Corrections, responses and submissions

Something wrong? Report a correction with the entry and a source. Every entry also has its own link.
An organisation named here can send its public response to an entry through the same link; a dated, sourced response is shown on the entry.
Know a dated public commitment we have not listed? Submit it with the exact words and a primary source (the speaker's own post, video with a timestamp, release, filing or transcript).
The same rules and the same standard of evidence apply to everyone. Confirmed changes are logged on the corrections page with the date.

Open data: download the whole ledger (CSV, CC BY 4.0). Archived on Zenodo, DOI 10.5281/zenodo.22985970. How entries are scored: methodology. No sponsor, advertiser or partner can add, remove, reorder, annotate or preview an entry, and these pages carry no advertising.

Cite as: SpaceNexus. (2026). SpaceNexus Promise Ledger (Version 2026-09-28) [Data set]. https://doi.org/10.5281/zenodo.22985970. Licensed CC BY 4.0.

The whole Promise Ledger, with every organisation and person, and the topic trackers.

Relativity Space: public spaceflight commitments

Launch vehicle company (Terran R). These are the dated public commitments by Relativity Space and its people that we could source to a primary, with what happened.

2 entries: 2 revised.

Entries

Met

Met late

Missed

Revised

Pending

What the statuses mean

Revised:: the date or quantity was moved before it came due.

Entries, soonest deadline first

Terran 1 first orbital launch by the end of 2020
Revised · worded as a target
First flight · Relativity Space
“Relativity is on track to conduct its first full orbital launch by the end of 2020”
Said Jan 17, 2019. Source: Relativity Space: Relativity Wins Right of Entry for Rocket Launch Site at Cape Canaveral (Jan 17, 2019)
Context: Release on the Launch Complex 16 right of entry at Cape Canaveral; the rocket is Terran 1.
Deadline
“by the end of 2020”, read as Dec 31, 2020 (year precision)Worded as a target ("targeting", "plan", "expect", "no earlier than")
Counts as met when
Terran 1 lifts off for the first time.
Later dated commitments for the same milestone
1. Nov 23, 2020, Tim Ellis (Co-founder and CEO, Relativity Space): “We are on track to launch our first Terran 1 rocket to orbit next year with existing capital on our balance sheet.” (new date as stated: next year, read as Dec 31, 2021). RevisedSource: Relativity Space: Relativity Space Closes $500M Series D Financing as It Solidifies Sector-Leading Momentum (Nov 23, 2020)
2. Aug 20, 2021: “Terran 1’s demonstration launch is now set for early 2022 from Cape Canaveral LC-16.” (new date as stated: early 2022, read as Jun 30, 2022). RevisedSource: Relativity Space on X: A few updates on #Terran1 (Aug 20, 2021)
3. Dec 10, 2021: “As we prepare to launch from #CapeCanaveral in 2022” (new date as stated: in 2022, read as Dec 31, 2022). Met lateSource: Relativity Space on X: Rainbird test at LC-16 (Dec 10, 2021)
4. Feb 22, 2023: “Catch us live at Launch Complex 16 in Cape Canaveral, FL on March 8, 2023 to watch the world’s first 3D printed rocket fly.” (new date as stated: March 8, 2023, read as Mar 8, 2023). Met lateSource: Relativity Space on X: Wen Launch? March 8, 2023 (Feb 22, 2023)
The counts use the original commitment. The latest date in the chain stands as: met late.
Outcome: Terran 1 (GLHF) lifted off from LC-16 late on March 22 (EDT), 2023-03-23 UTC, survived Max-Q and completed stage separation, and did not reach orbit. (Mar 23, 2023, 15 days after the latest deadline)
Outcome source: Space.com: Relativity Space launches world's first 3D-printed rocket on historic test flight, but fails to reach orbit (Mar 23, 2023)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Terran R launches starting in 2024
Revised · worded as a commitment
First flight · Relativity Space
“Starting in 2024, Terran R will launch from Launch Complex 16, the company’s site at Cape Canaveral”
Said Jun 8, 2021. Source: Relativity Space: Relativity Unveils Its Plans for Terran R, the First Fully Reusable, Entirely 3D-Printed Rocket (Jun 8, 2021, paragraph beginning 'Terran R will be outfitted with seven 3D-printed Aeon R rocket engines')
Deadline
“Starting in 2024”, read as Dec 31, 2024 (year precision)Worded as a commitment ("will")
Counts as met when
Terran R lifts off for the first time.
Later dated commitments for the same milestone
1. Apr 12, 2023: “Starting in 2026, Terran R will launch from Space Launch Complex 16, the company’s orbital launch site at Cape Canaveral, Florida.” (new date as stated: Starting in 2026, read as Dec 31, 2026). PendingSource: Relativity Space: Relativity Space Shares Updated Go-to-Market Approach for Terran R, Taking Aim at Medium to Heavy Payload Category with Next-Generation Rocket (Apr 12, 2023)
2. Mar 10, 2025: “We plan to launch Terran R from Launch Complex 16 in Cape Canaveral, Florida beginning in late 2026.” (new date as stated: beginning in late 2026, read as Dec 31, 2026). PendingSource: Relativity Space: Relativity Space Achieves Major Design and Production Milestones for Terran R, Demonstrating Momentum Towards Launch (Mar 10, 2025, closing paragraph)
The counts use the original commitment. The latest date in the chain stands as: pending.
Outcome: Relativity's August 2026 update (published 2026-09-11) reports all engines installed on the thrust structure and stage two heading to hot fire, with no launch date given.
Outcome source: Relativity Space: August 2026 Company Update (Sep 11, 2026)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·

Corrections, responses and submissions

Something wrong? Report a correction with the entry and a source. Every entry also has its own link.
An organisation named here can send its public response to an entry through the same link; a dated, sourced response is shown on the entry.
Know a dated public commitment we have not listed? Submit it with the exact words and a primary source (the speaker's own post, video with a timestamp, release, filing or transcript).
The same rules and the same standard of evidence apply to everyone. Confirmed changes are logged on the corrections page with the date.

Cite as: SpaceNexus. (2026). SpaceNexus Promise Ledger (Version 2026-09-28) [Data set]. https://doi.org/10.5281/zenodo.22985970. Licensed CC BY 4.0.

The whole Promise Ledger, with every organisation and person, and the topic trackers.

Relativity Space: public spaceflight commitments

Entries, soonest deadline first

Terran 1 first orbital launch by the end of 2020

Terran R launches starting in 2024

Corrections, responses and submissions

Relativity Space: public spaceflight commitments

Entries, soonest deadline first

Terran 1 first orbital launch by the end of 2020

Terran R launches starting in 2024

Corrections, responses and submissions

Newsletter