Webcasts

Dr. Greg Chavers, Test Lead, Marshall Space Flight Center, Huntsville, AL

Dr. Greg Chavers, test lead at the Marshall Space Flight Center in Huntsville, Alabama, helped to design the “Mighty Eagle” robotic prototype lander. The vehicle, which can guide itself to a specified target, flew “open loop” to an altitude of 100 feet in late August.

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Dr. Neil Cheatwood, IRVE-3 Principal Investigator, NASA Langley Research Center, Hampton, VA

Neil Cheatwood is principal investigator of the Inflatable Reentry Vehicle Experiment (IRVE-3). In July, the IRVE-3 team tested an inflatable heat shield that protects spacecraft from extreme temperatures and hypersonic speeds when entering a planet's atmosphere or returning to Earth.

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Steve Gaddis, Program Director for NASA Space Technology's Game Changing Development Office, NASA Langley Research Center, Hampton, VA

Steve Gaddis runs the newly created Game Changing Technology Development Program Office. Gaddis leads the program’s efforts to develop innovative technologies that will revolutionize space exploration.

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Marcia Domack and John Wagner, Engineers, NASA Langley Research Center, Hampton, VA

Marcia Domack and John Wagner, engineers in the Advanced Materials and Processing Branch at NASA Langley Research Center, have worked with Boston-based metal fabricator Spincraft, focusing on a one-piece manufacturing process called spin forming. The team used the spin-forming technique to create a model of the forward pressure vessel bulkhead (FPVBH) of an Orion-type crew module.

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Stephen Freeman, Vice President of International Business Development, Materion Corporation

Recently, NASA Tech Briefs spoke with Stephen Freeman, Vice President of International Business Development for Materion Corporation, which is the new name for advanced materials manufacturer Brush Engineered Materials and all of its businesses. Materion is a New York Stock Exchange listed company with annual sales of 1.5 billion dollars. A 20-year veteran of Materion, Steve discusses how the rollout of the new Materion brand has progressed over the past year, new and exciting applications for beryllium and their other materials, and how they also have developed into the world’s largest optical coatings manufacturer.

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Sandeep Yayathi, Robotics Engineer, NASA Johnson Space Center, Houston, TX

The Robonaut is a humanoid robot, so it’s a robot that looks very much like a person. It has two arms, similar degrees of freedom, and some complex dexterous hands. The hands are also very similar to what we have on our arms. The goal is for the Robonaut to be able to interface with the same interfaces that the crew uses now, and be able to handle the same tools that they use in orbit. Currently we have an (intra-vehicular activity) IVA version of the Robonaut, so it’s inside the space station mounted to a stanchion that the crew’s been working with. Looking forward to the future, we are currently working on a battery-based power system, as well as a pair of legs. Not so much legs like you and I have, but similar to the arms, with specialized end effectors for grabbing on to fixtures, tracks, and hand rails available on the station. This will set the stage for eventually having a robot that goes EVA [extra-vehicular activity].

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Stephen Merkowitz, Project Manager, NASA Goddard Space Flight Center, Greenbelt, Maryland

Stephen Merkowitz: NASA currently offers a network of space geodetic ground stations that do Very Long Baseline Interferometry (VLBI), satellite laser ranging (SLR), and [global navigation satellite system] GNSS or GPS tracking. The new space geodesy project will develop and implement the next-generation systems. The current systems are 20-30 years old. One of the primary drivers for upgrading the system is sea-level measurement, where you would like to be able to make those measurements at the millimeter level and have them be stable over the years, so you can do repeated measurements.

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