Story perspectives

Astrobotic Tests 4,000-lb Rotating Engine, Eyes Lunar South Pole

4/29/2026

Summary

Story summary

Astrobotic completed tests of its Chakram rotating detonation engine at NASA’s Space Flight Center in Huntsville.
Two prototypes ignited, delivering 4,000 lb thrust each and together running 470 seconds without damage, with one achieving a 300-second burn that raised specific impulse ~15 percent.
NASA funded the effort through Business Innovation Research awards and a Space Act Agreement, prompting Astrobotic to target a south-pole lunar mission this year by mounting Chakram on Griffin landers.

1 of 1

Story summary

Astrobotic completed tests of its Chakram rotating detonation engine at NASA’s Space Flight Center in Huntsville.
Two prototypes ignited, delivering 4,000 lb thrust each and together running 470 seconds without damage, with one achieving a 300-second burn that raised specific impulse ~15 percent.
NASA funded the effort through Business Innovation Research awards and a Space Act Agreement, prompting Astrobotic to target a south-pole lunar mission this year by mounting Chakram on Griffin landers.