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    • By NASA
      March 25, 2024
      Former NASA Johnson Space Center Director George W. S. Abbey RELEASE J24-008
      NASA Remembers Former NASA Johnson Director George W. S. Abbey
      George W. S. Abbey, former director of NASA’s Johnson Space Center, died Sunday, March 24, in Houston after an illness. The Seattle native was 91. 
      “A true visionary, Mr. Abbey demonstrated transformational leadership as Johnson’s seventh center director. During his tenure, the space shuttle flew more than 25 successful missions; the joint U.S. and Russian Shuttle-Mir Program was completed, providing important information for long-duration spaceflight,” said Vanessa Wyche, director of NASA Johnson. “He was instrumental in the Johnson team’s involvement in developing and launching the first elements of the International Space Station, which marked the beginning of a new era in space exploration. On behalf of NASA’s Johnson Space Center, we send our condolences to Mr. Abbey’s loved ones during this difficult time.”
      Abbey had a long and storied career in human spaceflight that began with NASA in 1964 and continued beyond his retirement from the agency. As the director of flight operations, he oversaw selection of NASA’s first space shuttle astronauts, mission operations, and the new shuttle program’s approach and landing tests.
      From 1987 to 1993, Abbey supported NASA Headquarters in Washington, serving in key roles in human spaceflight, and on the National Space Council. He returned to Johnson in 1994, first as deputy director, then director, leading the development and launch of the space station. Abbey retired from the agency in 2003.
      In December 2021, NASA named the Saturn V rocket display park outside Johnson’s main gate for Abbey. Abbey instituted the Longhorn Project, a vital STEM program that provides students with hands-on agricultural experiences and academic scholarships. He leaves behind a legacy of excellence and lasting impact as he will continue to inspire over 1.2 million visitors who visit the George W.S. Abbey Rocket Park annually.
      “Abbey’s dedication to human spaceflight remained steadfast. As the NASA family mourns his passing, we are grateful for his leadership and the legacy he leaves behind,” Wyche said.
      Abbey is survived by his five children, his eight grandchildren, three great-grandchildren, nieces, and nephews.
      Learn more about Abbey’s career in support of NASA at:
      https://www.nasa.gov/people/george-w-s-abbey/
      -end-
      Kelly Humphries / Nilufar Ramji
      Kelly.o.humphries@nasa.gov / niliufar.ramji@nasa.gov
      281-483-5111
      View the full article
    • By NASA
      5 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      NASA engineers will test a suite of new laser technologies from an aircraft this summer for Earth science remote sensing. Called lidar, the instruments could also be used to improve models of the Moon’s shape and aid the search for Artemis landing sites.
      Similar to sonar, but using light instead of sound, lidars calculate distances by timing how long a laser beam takes to reflect off a surface and return to an instrument. Multiple pings from the laser can provide the relative speed and even 3D image of a target. They increasingly help NASA scientists and explorers navigate, map, and collect scientific data.
      Engineers and scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, continue to refine lidars into smaller, lighter, more versatile tools for science and exploration, with help from hardware provided by small business and academic partners.
      “Existing 3D-imaging lidars struggle to provide the 2-inch resolution needed by guidance, navigation and control technologies to ensure precise and safe landings essential for future robotic and human exploration missions,” team engineer Jeffrey Chen said. “Such a system requires 3D hazard-detection lidar and a navigation doppler lidar, and no existing system can perform both functions.”
      Engineer Jeffrey Chen tests a CASALS lidar prototype on the roof of Goddard’s Building 33.NASA Enter CASALS, the Concurrent Artificially intelligent Spectrometry and Adaptive Lidar System. Developed through Goddard’s IRAD, Internal Research and Development program, CASALS shines a tunable laser through a prism-like grating to spread the beam based on its changing wavelengths. Traditional lidars pulse a fixed-wavelength laser which is split into multiple beams by bulky mirrors and lenses to split it into multiple beams. One CASALS instrument could cover more of a planet’s surface in each pass than lidars used for decades to measure Earth, the Moon, and Mars.
      CASALS’s smaller size, weight, and lower power requirements enable small satellite applications as well as handheld or portable lidars for use on the Moon’s surface, Goddard engineer and CASALS development lead Guangning Yang said.
      The CASALS team received funding from NASA’s Earth Science Technology Office to test their improvements by airplane in 2024, bringing their system closer to spaceflight readiness.
      What Color is Your Lidar?
      As lidars become more specialized, CASALS can incorporate different wavelengths, or colors of laser light for applications like Earth science, exploring other planets and objects in space, and navigation and rendezvous operations.
      The CASALS Team used Goddard IRAD and NASA SBIR (Small Business Innovation Research Program) funding along with commercial partners Axsun Technologies and Freedom Photonics to develop new fast-tuning lasers in the 1-micron portion of the infrared spectrum for Earth science and planetary exploration. By comparison, commonly available lidars used for self-driving vehicle development typically use 1.5-micron lasers for range and speed calculations.
      On Earth, wavelengths near 1 micron pass readily through the atmosphere and are good at differentiating vegetation from bare ground, said Ian Adams, Goddard’s chief technologist for Earth sciences. Wavelengths near 0.97 and 1.45 microns offer valuable information about water vapor in Earth’s atmosphere but do not travel as efficiently to the surface.
      In a related project, the team partnered with Left Hand Design Corporation to develop a steering mirror to extend CASALS’s 3D-imaging coverage and improve resolution. He said the lidar’s higher pulse rate can build up signal sensitivity to provide range and velocity measurements at up to 60 miles.
      Artemis-related missions seeking to land near the Moon’s South Pole could also use CASALS’s sharper imaging to help assess the safety of potential landing sites.
      Bringing the Moon into Focus
      More detailed 3D models of the Moon drove Goddard planetary scientist Erwan Mazarico’s IRAD effort to refine CASALS’s ability to measure surface details smaller than 3 feet. He said this will help understand the Moon’s sub-surface structures and changes over time.
      Every month, Earth’s path across the lunar sky moves within 10 or 20 degrees of the center of the side facing Earth.
      “We’ve predicted based on our understanding of its inner structure that Earth’s shifting pull could change the tidal bulge or shape of the Moon,” Mazarico said. “High-resolution measurements of that deformation could tell us more about potential variations within the Moon. Is it responding like a fully uniform body in the interior?”
      Lunar Reconnaissance Orbiter’s Lunar Orbiting Laser Altimeter has produced detailed maps of the Lunar South Pole, including where water ice appears to fill the bottoms of permanently shadowed craters.NASA / LRO NASA’s Lunar Reconnaissance Orbiter (LRO) has measured Earth’s natural satellite since 2009, modeling the Moon’s terrain and providing a wealth of discoveries with the help of LOLA, its Lunar Orbiting Lidar Altimeter. LOLA fires 28 laser pulses per second, split into five beams touching the surface 65 feet to 100 feet apart. Scientists use LRO images to estimate smaller surface features between laser measurements.
      CASALS’s laser, however, allows the equivalent of several hundred thousand pulses per second, reducing the distance between surface measurements.
      “A denser and more accurate data set would allow us to study much smaller features,” Mazarico said, including those from impacts, volcanic activity, and tectonics. “We’re talking orders of magnitude more measurements. That could be quite a big game changer in terms of the type of data we get from lidar.”
      Read More Share
      Details
      Last Updated Mar 19, 2024 EditorKarl B. Hille Related Terms
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    • By NASA
      4 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      Leslie Livesay is JPL’s new deputy director.NASA/JPL-Caltech The first woman to serve as JPL’s deputy director, Livesay serves under Laurie Leshin, the first woman to lead the lab.
      Leslie Livesay begins her tenure as deputy director of NASA’s Jet Propulsion Laboratory on Monday, March 18. She succeeds Larry D. James, who served as deputy director since September 2013.
      During a career spanning more than 37 years at JPL, Livesay has managed teams in the development of technologies and flight systems for planetary, Earth science, and astrophysics missions. She served as the project manager of the Kepler space telescope mission, led the lab’s Engineering and Science Directorate, was director for Astronomy and Physics, and most recently served as associate director for Flight Projects and Mission Success, overseeing the implementation and operations of all JPL flight missions.
      “Having served a variety of roles at JPL, I’ve been fortunate to be able to work up close with the many remarkable organizations that make this lab such a special place. I’m looking forward to my new role as we dare mighty things together, boldly driving transformative science and technology,” said Livesay.
      Born in Chicago, Livesay holds a bachelor’s degree in applied mathematics from California Polytechnic State University, San Luis Obispo and a master’s degree in electrical engineering from the University of Southern California. She is the recipient of the American Astronautical Society Carl Sagan Memorial Award, Aviation Week Network’s Laureate Award, NASA’s Exceptional Achievement Medal, and the NASA Outstanding Leadership Medal.
      As the first woman to be named JPL’s deputy director, Livesay serves under Laurie Leshin, who in May 2022 became the first woman to lead JPL. Functioning as the laboratory’s chief operating officer, the deputy director is responsible for the day-to-day management of its resources and activities. Managed by Caltech for NASA, JPL employs about 6,000 scientists, engineers, technicians, and business support personnel, and manages over three dozen flight missions and science instruments, with more in development.
      “Leslie has blazed a path in numerous senior leadership positions across JPL. She brings remarkable experience and capabilities to the role as we look toward the enormous and exciting opportunities that lay ahead,” said Leshin. “I also want to express my deep gratitude to Larry James, whose tenure is marked with multiple successful missions, significant improvement in JPL’s operations, and exemplary institutional stewardship.”
      Lt. Gen. James was the Air Force deputy chief of staff for intelligence, surveillance, and reconnaissance in Washington before retiring from active duty and coming to JPL. Earlier in his career, he trained as an Air Force payload specialist for the Space Shuttle Program. James also served as vice commander of the Air Force Space and Missile Systems Center in Los Angeles and as commander of the 14th Air Force at Vandenberg Air Force Base in California, where he was responsible for all Department of Defense satellite and launch systems.
      “I’ve been a space enthusiast from an early age, so it’s been a privilege to have been part of JPL,” said James. “Although my time here is done, I’m eager to see the full manifest of missions and projects that we’ve been working on come to fruition, and I know Leslie will thrive in her new role. As for me, I’ll be taking a new position in Australia to help build their space capabilities and continue to strengthen the U.S.-Australia partnership.”
      A division of Caltech in Pasadena, California, JPL began in 1936, going on to build and help launch America’s first satellite, Explorer 1, in 1958. By the end of that year, Congress established NASA, and JPL became a part of the agency. Since then, JPL has managed such historic missions as Voyager, Galileo, Cassini, the Mars Exploration Rover program, the Ingenuity Mars Helicopter, and many more.
      Veronica McGregor / Matthew Segal
      Jet Propulsion Laboratory, Pasadena, Calif.
      818-354-9452 / 818-354-8307
      veronica.c.mcgregor@jpl.nasa.gov / matthew.j.segal@jpl.nasa.gov
      2024-027      
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      Last Updated Mar 18, 2024 Related Terms
      Jet Propulsion Laboratory Explore More
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    • By NASA
      NASA Portrait of JSC Center Director – Vanessa Wyche. Photographer: Robert Markowitz March 4, 2024
      MEDIA ADVISORY: J24-005
      The director of NASA’s Johnson Space Center will discuss the objectives behind the center’s new Exploration Park initiative at the next meeting of the Bay Area Houston Economic Partnership’s (BAHEP) aerospace advisory committee at 12 p.m. CST Wednesday, March 6, at 1150 Gemini in Houston.

      Johnson Director Vanessa Wyche will be joined by representatives from the American Center for Manufacturing and Innovation (ACMI), which recently signed the second agreement to lease acres of underutilized land in a 240-acre Exploration Park. NASA signed a separate lease with the Texas A&M University System earlier this month.
      Media are invited to attend the opening discussion of BAHEP’s committee meeting, then have a brief opportunity for interviews with Wyche, John Burer, founder of ACMI and other ACMI experts.

      NASA is leasing the land to create facilities for a collaborative development environment that increases commercial access and enhances the United States’ commercial competitiveness in the space and aerospace industries. 

      Media wishing to participate in person are asked to RSVP by 9 a.m. Wednesday, March 6, by contacting the Johnson newsroom at 281-483-5111 or jsccommu@mail.nasa.gov.
      To learn more about NASA Johnson and Exploration Park, visit:
      https://www.nasa.gov/johnson/johnson-news/#news-releases
      -end-

      Kelly Humphries
      Johnson Space Center, Houston
      281-483-5111
      kelly.o.humphries@nasa.gov


      View the full article
    • By NASA
      Feb. 13, 2024
      MEDIA ADVISORY: J24-002
      JSC Town Hall with Center Director Vanessa Wyche. Photographer: Robert MarkowitzNASA NASA Johnson Director to Discuss Exploration Park at ASCENDxTexas
      Media are invited to attend an event with NASA taking place as part of ASCENDxTexas on Thursday, Feb. 15.
      Vanessa Wyche, director of NASA’s Johnson Space Center in Houston, will be in attendance, as will Texas A&M University System Chancellor John Sharp and Texas A&M University President Mark Welsh. They will provide updates on Exploration Park and are available briefly for interviews after the announcement.
      NASA sought proposals for use of the undeveloped and underutilized land near Saturn Lane, known as Exploration Park, on June 9, 2023. The parcel is outside of Johnson’s controlled access area and adjacent to its main campus.
      ASCENDxTexas, hosted by AIAA, begins on Wednesday, Feb. 14, at South Shore Harbour Resort and Conference Center, League City, Texas. Media check-in will begin at 9:20 a.m. CST, with the event beginning promptly at 9:45 a.m. For ASCENDxTexas media credentialing, visit:
      https://www.aiaa.org/events-learning/events/ascend/ascend-press-pass
      For more than 60 years, NASA’s Johnson Space Center in Houston has led the nation and the world on a continuing adventure of human exploration, discovery, and achievement. Today, Johnson is the hub of human spaceflight, the home of mission control and astronaut training, and leads the International Space Station, Orion, and Gateway programs, while also playing important roles in numerous other advanced human exploration and research projects.
      -end-
      Kelly Humphries
      Johnson Space Center, Houston
      281-483-5111
      kelly.o.humphries@nasa.gov
      View the full article
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