Relativity Space(@relativityspace):Stage 2 testing is officially underway at NASA Stennis 🚀 The campaign kicked off with successful cryoproof, loading the stage with cryogenic fluids and pressurizing it beyond expected flight loads to validate its structural integrity, followed by COPV manifold proof testing to verify the high-pressure system that will pressurize propellants during flight. These tests also marked the activation of A2, bringing together the infrastructure, flight hardware, ground and vehicle software, and the integrated team of test, launch, and vehicle engineers. Next up: hot fire capable assembly work, then back to the stand ahead of stage hot fire testing. 🔥

2026.08.06 17:53

Stage 2 testing is officially underway at NASA Stennis 🚀 The campaign kicked off with successful cryoproof, loading the stage with cryogenic fluids and pressurizing it beyond expected flight loads to validate its structural integrity, followed by COPV manifold proof testing to verify the high-pressure system that will pressurize propellants during flight. These tests also marked the activation of A2, bringing together the infrastructure, flight hardware, ground and vehicle software, and the integrated team of test, launch, and vehicle engineers. Next up: hot fire capable assembly work, then back to the stand ahead of stage hot fire testing. 🔥

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