In Case You Missed It: A Weekly Summary of Top Content from NASA's Marshall Space Flight Center
Week of July 17 - July 21, 2023.
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NASA Marshall Center Director to Retire After 38 Years of Service
Jody Singer, NASA’s Marshall Space Flight Center Director, announced Monday her retirement, effective Saturday, July 29, after more than 38 years of service. Among many firsts in her career, Singer was appointed as the first female center director at Marshall in 2018, after serving as deputy director from 2016 to 2018. Marshall’s current deputy center director, Joseph Pelfrey, will serve as the interim acting director until Singer’s successor is identified through a nationwide search and open competition. “I wish Jody well during her retirement. And I know individuals at the beginning of their career at NASA – and members of the Artemis Generation who dream of working here – will be inspired by Jody’s service, knowing their contributions can help return NASA astronauts to the Moon and prepare us for crewed missions to Mars,” said NASA Administrator Bill Nelson.
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‘Fuel’ and Fire: NASA’s Artemis Missions to the Moon, Featuring Metallic
What do Metallica and NASA’s Artemis missions to the Moon have in common? Both love “Fuel” and fire. See footage of the Artemis I launch scored by Metallica’s “Fuel.” Learn more about how NASA’s Space Launch System (SLS) rocket and Orion spacecraft will send four astronauts on a lunar flyby around the Moon for NASA’s Artemis II mission: https://nasa.gov/sls
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NASA’s IXPE Fires Up Astronomers with New Blazar Findings
The universe is full of powerful supermassive black holes that create powerful jets of high-energy particles, creating sources of extreme brightness in the vastness of space. When one of those jets points directly at Earth, scientists call the black hole system a blazar. To understand why particles in the jet move with great speeds and energies, scientists look to NASA’s IXPE (Imaging X-ray Polarimetry Explorer), which launched in December 2021. IXPE measures a special property of X-ray light called polarization, which has to do with the organization of electromagnetic waves at X-ray frequencies. This week, an international team of astrophysicists published new findings from IXPE about a blazar called Markarian 421. This blazar, located in the constellation Ursa Major, roughly 400 million light-years from Earth, surprised scientists with evidence that in the part of the jet where particles are being accelerated, the magnetic field has a helical structure.
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Hubble Views a Galactic Monster
The NASA/ESA Hubble Space Telescope has captured a monster in the making in this observation of the exceptional galaxy cluster eMACS J1353.7+4329, which lies about eight billion light-years from Earth in the constellation Canes Venatici. This collection of at least two galaxy clusters is in the process of merging together to create a cosmic monster, a single gargantuan cluster acting as a gravitational lens. Gravitational lensing is a dramatic example of Einstein’s general theory of relativity in action. A celestial body such as a galaxy cluster is sufficiently massive to distort spacetime, which causes the path of light around the object to be visibly bent as if by a vast lens. Gravitational lensing can also magnify distant objects, allowing astronomers to observe objects that would otherwise be too faint and too far away to be detected. It can also distort the images of background galaxies, turning them into streaks of light. The first hints of gravitational lensing are already visible in this image as bright arcs which mingle with the throng of galaxies in eMACS J1353.7+4329.
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New NASA Artemis Instruments to Study Volcanic Terrain on the Moon
As part of NASA’s regular cadence of robotic lunar missions through Artemis, the agency has selected a new scientific payload to establish the age and composition of hilly terrain created by volcanic activity on the near side of the Moon. The DIMPLE instrument suite, short for Dating an Irregular Mare Patch with a Lunar Explorer, will investigate the Ina Irregular Mare Patch, discovered in 1971 by Apollo 15 orbital images. Learning more about this mound will address outstanding questions about the evolution of the Moon, which in turn can provide clues to the history of the entire solar system. DIMPLE is the result of the third annual proposal call for PRISM (Payloads and Research Investigations on the Surface of the Moon), which sends science investigations to the Moon through a NASA initiative called CLPS, or Commercial Lunar Payload Services. This PRISM call was the first that allowed proposers to choose and justify a particular landing site for conducting high-priority lunar science investigations.
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