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Space Launch System Block 1 vs Start

RANKED BY PAYLOAD TO LOW EARTH ORBIT #4 VS #231 CHECKED 29 SEPT 2026

Side by side

Verdict

Space Launch System Block 1 ranks #4 of 311 on Payload to low Earth orbit (95,000 kg); Start ranks #231 (645 kg).

Rank 04 of 311 · leads

Payload to low Earth orbit

95,000 kg

Launches2

Success rate100%

Payload to GTO—

First flight16 Nov 2022

Height98 m

Liftoff thrust39,000 kN

Launch mass2,628 t

Launch cost$2,000,000,000

ReusableNo

StatusActive

Rank 231 of 311

Payload to low Earth orbit

645 kg

Launches1

Success rate0%

Payload to GTO—

First flight28 Mar 1995

Height28.9 m

Liftoff thrust887 kN

Launch mass60 t

Launch cost$10,500,000

ReusableNo

StatusRetired

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Source The Space Devs — Launch Library 2 Last checked 29 Sept 2026