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Spotlight on Lessons Learned graphic with a photo of the ISOPAR-H Tank and TEA-TEB Fill Tank. Credit: NASA
Spotlight on Lessons Learned: E-1 Triethyl Aluminum-Triethyl Borane System Contamination

Mistake-proofing techniques built into system processes can aid in preventing human error when engineers and test operators make time-critical decisions in unique circumstances such as dangerous weather or limited supplies.

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Screenshot of David Stark during his interview. He is smiling and looking to the side. The APPEL and YouTube logos are on the right side. Credit: NASA
Critical Knowledge inSight: Testing Requirements

Clear communication of the testing process helps customers keep their testing phase on schedule and budget.

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Kennedy Space Center Office of Diversity and Equal Opportunity Manager Rob Grant speaks to NASA civil service and contractor employees and guests in Kennedy Space Center’s Training Auditorium on April 12, 2019. Credit: NASA
Podcast Episode 102: Legacy of Connection

NASA Kennedy Space Center’s Rob Grant discusses the agency’s Black History Month theme: Building a Legacy of Achievement, Connection, and Knowledge.

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A realistic 3D rendering of the Orion spacecraft floating close to the Moon, with the Moon in the background. Credit: NASA
Podcast Episode 101: Artemis Missions

Artemis Mission Manager Mike Sarafin discusses Artemis I and NASA’s increasingly complex Moon to Mars missions.

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A side by side comparison of Jupiter. On the left, it's shown in the visible spectrum–what humans can see. It has an orange tint. On the right side, Jupiter is shown in Infrared, visible, and ultraviolet spectrums. It has a blue tint, and the Great Red Spot looks pink. Credit: NASA
Featured Video: How Hubble Images Are Made

As a cosmic photographer, NASA’s Hubble Space Telescope has taken over a million snapshots documenting the universe. 

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A model of the X-59 forebody is undergoing testing in the Lockheed Martin Skunk Works’ wind tunnel in Palmdale, California. Credit: NASA/Garry Tice
January 2023 INSIGHT Now Available

Don’t miss the latest issue of INSIGHT, APPEL Knowledge Services’ online publication featuring our new podcast episodes, columns, articles, lessons learned and more. We invite you to read it today on our website.

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System Expert Performing Analysis of a Thermal Protection System Tile. Credit: NASA
Spotlight on Lessons Learned: Component Identification Procedures Used in the Columbia Accident Investigation

Procedures developed by the NASA community to identify, catalog, and inspect accident debris proved invaluable in the Space Shuttle Columbia accident investigation.

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2017 NASA astronaut candidate Jessica Watkins is helped into a spacesuit prior to underwater spacewalk training at NASA Johnson Space Center’s Neutral Buoyancy Laboratory in Houston. Credit: NASA/David DeHoyos
Podcast Episode 100: NASA’s Extraordinary Workforce

NASA Deputy Administrator Pam Melroy discusses NASA’s positive impact on humanity—and the people who make it happen.

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Space Shuttle Orbiter Columbia STS-107 mission is launching toward space from launch pad 39A at Kennedy Space Center on January 16, 2003. Credit: NASA
Critical Knowledge inSight: Communication Lessons from the Columbia Tragedy

Good communication is a two-way street that requires those delivering and receiving communication to pay attention to some key rules to be effective.

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