Orion Launch Abort System Attitude Control Motor Lights Up Sky

(PhysOrg.com) -- It looked like a light show in Elkton, Md., on Tuesday, Dec. 15, as NASA ground tested a full-scale attitude control motor, or ACM. The motor operated with precision as its elaborate eight-valve control system ...

'Green' satellite fuel designed to make space safer

(PhysOrg.com) -- On the day running up to launch when a spacecraft is fuelled, ground personnel look more like astronauts than engineers, putting on spacesuit-like protective gear.

NASA team demonstrates loading of Swedish 'green' propellant

A NASA team has successfully demonstrated the handling and loading of a new-fangled, Swedish-developed "green propellant" that smells like glass cleaner, looks like chardonnay, but has proven powerful enough to propel a satellite.

Tiny reef speedster challenges tuna in the ocean sprint

(Phys.org)—Tiny coral reef wrasses can swim as fast as some of the swiftest fish in the ocean – but using only half as much energy to do so, Australian scientists working on the Great Barrier Reef have found.

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