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Get the most interesting and important stories from the 51精品视频.When the Apollo 11 crew returned from humanity鈥檚 first successful mission to the moon nearly 50 years ago, retired 51精品视频 Professor was one of the first scientists to get his hands on a moon rock. This was a fitting honor听because his work as a postdoctoral research associate at Cornell University from 1960-67 helped NASA engineer the boots for Neil Armstrong鈥檚 giant leap for mankind.
鈥淚 watched Armstrong step onto the surface and was delighted to see he made a footprint, and the surface was compressible. It was exactly what I had predicted several years earlier,鈥 Hapke said.
That may seem like an odd victory, but at the time, the surface was a mystery.
鈥淭he problem was,鈥 he explained, 鈥渘obody knew what the lunar surface was like. Some people thought it was a relatively smooth variety of lava and there wouldn鈥檛 be any problems operating on it. Other people thought it was a very rough type of lava and it would be very difficult to walk on.鈥
鈥淚 did a lot of studies on the way the moon reflects light into different angles. From these studies, I concluded that the lunar surface was covered with a very fine-grain, porous powder. For the first time, NASA had something solid to go on in the design of their landing vehicles, roving vehicles, wheeled vehicles and space suit boots.鈥
Today, as the nation gears up to celebrate the 50th anniversary of the Apollo听11 landing on July 20, 88-year old Hapke is still studying the cosmos. He works with NASA鈥檚 Lunar Reconnaissance Orbiter Camera Team studying images received from the unmanned spacecraft, which was launched in 2009 to orbit the moon to find the best place to build a lunar base.
Rock of ages
When Hapke was hired at 51精品视频 in 1967, his goal was to understand why lunar soil only reflected about 7% of the sunlight that hit its surface. His earlier research had already hypothesized that the soil was created by meteorites pulverizing solid moon rocks over the course of billions of years. So why was the product of a moon rock that was pulverized to powder in a lab on Earth so much more reflective than what鈥檚 on the moon鈥檚 surface?
He teamed up with planetary geology professor , who was an expert in studying rocks with electron microscopes. They discovered that upon impact, meteorites pulverized moon rock into the powdery soil, but also melted and vaporized the rock in ways that created tiny particles of light-absorbing, metallic iron that coated the soil.
Without that coating, Hapke said, the moon would 鈥減robably be 10 times as bright as it is. So bright you could almost read a newspaper by the light of the full moon.鈥
He and Cassidy proposed the theory in 1975, but the iron particles that proved them right weren鈥檛 discovered until the year 2000, when an electron microscope powerful enough to observe it was created. To honor the planetary scientist, the research team responsible for finding the minerals named them Hapkeite. Another colleague named an asteroid after Hapke to recognize his theory surrounding the moon鈥檚 brightness.
Hapke鈥檚 arrival at 51精品视频 built upon a legacy of cosmological research and innovation that began as early as 1867, when 51精品视频 astronomy Professor used observations of the stars in motion to establish the Allegheny Time Standard, which became the model for U.S. time zones.
Bringing together space expertise at 51精品视频
Today鈥檚 University, meanwhile, is in the midst of a grassroots effort to combine space research from a range of departments into a centralized institute.
, the Ruth and Howard Mickle Endowed Chair and the Department Chair of Electrical and Computer Engineering in the , said he arrived at 51精品视频 from the University of Florida in January 2017 with 鈥渕y family, 14 graduate students and a truck full of equipment鈥 used for space research.
鈥淵ou might say that on Dec. 31, 2016, there was a leading space group at Florida. The very next day, that group was at 51精品视频,鈥 he said.
Since that time, his team at the National Science Foundation Center for Space, High-performance, and Resilient Computing () has that were launched to the International Space Station (ISS) and is working on a third system, all of which are part of NASA and the Department of Defense鈥檚 Space Test Program (STP).
鈥淐omputers are the future astronauts and the heart and soul of anything you do in space,鈥 said George. 鈥淢any of the students here grew up wanting to be astronauts. Since we鈥檙e not going to be astronauts, the next best thing 鈥 and in some ways the better thing 鈥 is to be working on research and technology that will fly in space.鈥
George has also been on a mission to collaborate with University faculty. The third STP project features the work of听, a professor of ophthalmology in the听听who specializes in neuromorphic vision sensors and neural processors. Neuromorphic vision and associated computation rely upon sensors and processors with functions inspired by how the human brain works. His sensor will be interfaced with a new SHREC space computer to create the first space-grade, neuromorphic, event-driven system that reacts to activity in ways that are similar to the human eye for applications in space situational awareness.
The new system is scheduled for delivery from 51精品视频 to NASA in December 2020, for a launch scheduled in April 2022.
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, a professor in the Department of Geology and Environmental Science, is founder of the Image Visualization and Infrared Spectroscopy Laboratory, which studies the geology, topographic changes, mineral deposits and lava flows of the moon and Mars by analyzing wavelengths of energy. Ramsey is a member of NASA鈥檚 study panel for the Deepspace Lunar Gateway 鈥 a plan to create a space station in the lunar orbit to serve as a landing point between the moon and the Earth 鈥 and a science team member on three of NASA鈥檚 thermal infrared instruments. He is also the last remaining planetary researcher in his department, which was the Department of Earth and Planetary Sciences during Hapke鈥檚 time.
Ramsey hasn鈥檛 formally teamed up with George for a project, but said George鈥檚 outreach effort is encouraging excitement听surrounding space research on campus again.
鈥淚f you have researchers doing active planetary science, it鈥檚 an amazing grab for kids and the public. Everyone wants to see new pictures from Mars or new results from the Moon,鈥 he said.
George noted a recent joint award by NASA to the and the Swanson School to support undergraduate space research projects for potential deployment on the ISS as the latest example of multidisciplinary collaboration on space research. He ultimately hopes all faculty with an interest in the great beyond can come together under a formal institute designed to promote their work and forge new partnerships.
鈥淣ow we have the School of Medicine, School of Pharmacy, and School of Engineering interacting and, in some cases, collaborating, on space research. And we have only scratched the surface,鈥 George said. 鈥淭here must be many more faculty and students at 51精品视频, either doing space research or highly interested if the right opportunity came along.鈥