DEPLOYDatabase

Robot model

Saiph

spacecommercialby Impulse Space

22 N bipropellant thruster using nitrous oxide and ethane.

Track Saiph
Manufacturer
Impulse Space
Form factor
space
Maturity
commercial
Lifecycle
active
Deployments
1

The verified answer

As of Sep 2026, DEPLOY verifies Saiph, a space by Impulse Space (commercial): 1 verified deployment on record. 1 source back the record.

Overview

22 N bipropellant thruster using nitrous oxide and ethane. Qualified May 2023. Storable, non-toxic, spark-ignited. Flight heritage on Mira OTV flights (LEO Express-1 and 2) and Haven Demo (Vast). Selected for Vast Haven-1 space station propulsion (RCS + deorbit).

Verified vs. claimed

Maturity stage
commercial(Commercially deployed with revenue-generating operations.)
Sources on file
View all sources →

Key facts

Thrust

22 N

Propellant

N2O / ethane

Qualified

May 2023

Role

bipropellant RCS/deorbit thruster

Autonomy level

n/a (component)

Specs

Role

bipropellant RCS/deorbit thruster

Thrust

22 N

Autonomy

n/a (component)

Qualified

2023-05

Propellant

N2O / ethane

Data & sources

Web sources

1

1 source backing this record.View all →

Pricing

No verified price is on record for Saiph. Physical-AI systems are often sold through enterprise contracts or operated as a service rather than at a public list price.

How DEPLOY tracks pricing

Deployments (1)

  • Saiph at Low Earth Orbitannounced

    Saiph thrusters are slated to provide RCS (augmenting CMGs) and deorbit capability for the Vast Haven-1 commercial space station, with launch targeted for 2027 and Q1 flight readiness.

Free to use on your site, with a link back to DEPLOY.

Saiph on the deployment map

View the global map

Where Saiph is verified operating. Explore the deployment map by place and type.

Free to use on your site, with a link back to DEPLOY.

Recent activity

Every change to this record is dated, sourced, and independently verified where marked.

Full change history →

Safety record

No incidents on record for Saiph.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Sources (1)

  1. https://www.vastspace.com/updates/vast-selects-impulse-space-for-haven-1-space-station-propulsion

Common questions

What is Saiph?
22 N bipropellant thruster using nitrous oxide and ethane. Qualified May 2023. Storable, non-toxic, spark-ignited. Flight heritage on Mira OTV flights (LEO Express-1 and 2) and Haven Demo (Vast). Selected for Vast Haven-1 space station propulsion (RCS + deorbit).
How much does Saiph cost?
Saiph's price is not publicly disclosed. DEPLOY has no verified price on record for Saiph from Impulse Space. Physical-AI systems like this are often sold through enterprise contracts or operated as a service rather than at a public list price; check the manufacturer for the latest.
Is Saiph actually deployed in the real world?
Yes. Saiph is independently verified in real-world operation on the DEPLOY registry, confirmed at named deployment sites with primary sources: not a concept, render, or demo-only.
Who makes Saiph?
Saiph is made by Impulse Space, based in Redondo Beach, California, USA, founded in 2021.
Where is Saiph deployed?
1 verified deployment of Saiph is on the DEPLOY registry, including at Low Earth Orbit.
Can you buy Saiph?
Saiph is in commercial deployment and is sold to operators; contact the manufacturer to buy, and see the pricing section for any recorded price.
What are alternatives to Saiph?
On the DEPLOY registry, comparable space robots to Saiph include Chang'e Lander, Mira, W-Series Capsule, spacevan.
How does Saiph compare to Chang'e Lander?
Saiph and Chang'e Lander (China National Space Administration · 4 deployments) are both space robots on the DEPLOY registry. Saiph has 1 verified deployment on record. Compare both records for specs, safety, deployments, and verified-vs-claimed autonomy.
Is Saiph a top space?
On DEPLOY's intelligence score, which blends verified deployments, safety, adoption, media, and IP signals, Saiph ranks in roughly the top 56% of space models tracked by the registry.
What is Saiph's maturity stage?
Saiph is at the commercial stage on the DEPLOY maturity ladder (research, prototype, pilot, commercial, production). Commercial stage means production-grade deployments are operating at named customer sites.
Is Saiph safe?
Saiph has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.
Methodology: Verified · 1 source (no primary) · last reviewed 2026-07-12

Verification posture

Verified

Low confidence

Review state

Stable

Last reviewed 2026-07-12

Maturity + lifecycle

Maturity stage: commercial

Lifecycle: active

Architectural position

Cohort: space

Sources by quality tier

1
unclassified
Unclassified source

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.

Methodology surface for Saiph.

Recent coverage

Saiph in third-party press

Impulse Space Raises $500M Series D to Build In-Space Mobility Infrastructure for the Space Economy

Jan 1, 2026

These 10 Startups Are Shaking Up the Race Into Space - Bloomberg.com

May 20, 2024

SpaceX founding employee successfully moves from rockets to in-space propulsion - Ars Technica

Nov 13, 2023