New Rocket Engine Burns for 5 Minutes Straight

Pittsburgh-based Astrobotic just shattered expectations by successfully testing a rocket engine that works completely differently from anything currently flying in space.

The company's experimental engine, called Chakram, uses controlled explosions that spin around a ring instead of the steady burn traditional rockets rely on. Think of it like the difference between a continuous campfire and a circular wave of firecrackers that never stops detonating.

The test happened at NASA's Marshall Space Flight Center in Alabama, where two prototype engines accumulated more than 470 seconds of firing time. One engine burned continuously for 300 seconds, likely the longest sustained firing of this type of engine ever recorded.

What makes this exciting is what these rotating detonation rocket engines promise: 10 to 15 percent better fuel efficiency while weighing less and taking up less space. In an industry where every ounce matters, those improvements could translate to carrying more cargo, flying farther, or spending less on fuel.

Previous attempts at this technology often sputtered out after short bursts or operated unstably. But Chakram produced more than 4,000 pounds of thrust and showed zero visible damage afterward, addressing the biggest question mark hanging over the technology: can it actually work reliably on real spacecraft?

Bryant Avalos, Astrobotic's lead investigator for Chakram, said the engine "more than exceeded our expectations." The company plans to use the technology on future lunar landers, reusable rockets, and vehicles designed to move cargo between Earth and the moon.

The Ripple Effect

This breakthrough extends beyond one company's achievement. NASA supported the project through research contracts, and the success validates years of theoretical work that struggled to produce practical results. Venus Aerospace completed a similar test flight last year, showing multiple teams are closing in on making this technology standard.

The advanced manufacturing techniques Astrobotic developed, including specialized 3D printing that improves heat management, could benefit rocket design across the industry. Better engines mean lower costs for satellite launches, scientific missions, and eventually commercial space travel.

As companies work to establish permanent operations around the moon and beyond, innovations like Chakram transform "someday" technologies into tools we can actually use today.