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February 2025

The wall of this 3D printed aluminum rocket engine nozzle is actually hollow, filled with tiny channels that the cryogenic fuel flows through to cool the nozzle. Credit: NASA

Banner for the latest APPEL KS podcast episodes, EPISODE 147: NASA PHOTOGRAPHY – VISUALSTORYTELLING and EPISODE 146: SPACE MEDICINE – BODY AND MIND. Credit: NASA APPEL Knowledge Services

Recent Articles

The sample return capsule from NASA’s OSIRIS-REx mission shortly after touching down in the desert, Sunday, Sept. 24, 2023, in Utah. The sample sealed inside has surprised scientist who have only begun to analyze it. Credit: NASA/Keegan Barber

Historic OSIRIS-REx Asteroid Sample Holds Surprises

The parent of Bennu was deep in the solar system, held many of the building blocks of life, and likely contained salty brines below the surface.

A 3D printer at a facility of NASA partner RPM Innovations additively manufactures a large-scale aerospike rocket engine nozzle using one of Elementum 3D’s specialized, 3D-printable aluminum alloys. Credit: RPM Innovations Inc.

NASA Technology Improves Life on Earth

Spinoff publication highlights innovations for space that improve everyday life for millions.

NASA Astronaut Bruce McCandless II reaches a maximum distance of about 100 yards from the Space Shuttle Challenger before reversing direction in his manned maneuvering unit (MMU) and returning to the spacecraft again and again during the nearly seven-hour untethered spacewalk. Credit: NASA

This Month in NASA History: Untethered Spacewalk Becomes a Reality

Long envisioned in science fiction, NASA’s Manned Maneuvering Unit was built to support critical tasks during the shuttle era.

Featured Video: SPHEREx and PUNCH launch. Credit: NASA

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