When Apollo astronauts returned these samples around 50 years earlier, NASA had the foresight to keep a few of them beautiful and unopened.
” The agency understood science and technology would progress and allow researchers to study the product in new ways to resolve brand-new questions in the future,” said Lori Glaze, director of the Planetary Science Division at NASA Headquarters. “The ANGSA effort was created to analyze these specifically stored and sealed samples.”
From left, Dr. Juliane Gross, Astromaterials Research and Exploration Science Division (ARES) deputy Apollo curator, along with Drs. Alex Meshik, and Olga Pravdivtseva, from Washington University in St. Louis, begin a gas extraction procedure using the manifold. Credit: NASA
The ANGSA 73001 sample is part of an Apollo 17 drive tube sample collected by astronauts Eugene Cernan and Harrison “Jack” Schmitt in December of 1972. The astronauts then separately sealed one drive tube under vacuum on the Moon prior to bringing them back to Earth; just 2 drive tubes were vacuum sealed on the Moon in this way, and this is the first to be opened. The sealed tube has been thoroughly kept in a protective external vacuum tube and in an atmosphere-controlled environment at Johnson ever since.
Now, scientists are focusing attention on the sealed, lower section of the core. The temperature at the bottom of the core was incredibly cold when it was gathered, which means that volatiles (compounds that vaporize at normal temperatures, like water ice and carbon dioxide) may have existed. They are especially interested in the volatiles in these samples from the equatorial regions of the Moon, due to the fact that they will permit future researchers studying the Artemis samples to much better understand where and what volatiles may be present in those samples.
From left, Dr. Juliane Gross, Astromaterials Research and Exploration Science Division (ARES) deputy Apollo manager, and Dr. Francesca McDonald, from ESA, take accurate measurements from the piercing gadget prior to utilizing the recently developed tool. Credit: NASA/James Blair
The quantity of gas anticipated to be present in this sealed Apollo sample is most likely really low. If researchers can thoroughly extract these gases, they can be analyzed and identified using modern-day mass spectrometry innovation. This innovation, which has evolved to levels of severe sensitivity over the last few years, can precisely identify the mass of unknown particles and utilize that data to specifically recognize them. This not only makes for improved measurements, but likewise implies the gathered gas can be divided into smaller portions and shown more scientists conducting various type of lunar science.
NASAs Ryan Zeigler, the Apollo sample curator, is supervising the process of drawing out the gas and rock. Its also Zeiglers job to properly prepare, catalog, and share the sample with others for research.
” A lot of individuals are getting fired up,” said Zeigler. “University of New Mexicos Chip Shearer proposed the project over a decade earlier, and for the previous 3 years, weve had two fantastic teams establishing the distinct equipment to make it possible.”
The gadget being utilized to extract and collect the gas, called a manifold, was developed by Drs. Alex Meshik, Olga Pravdivtseva, and Rita Parai from Washington University in St. Louis. Dr. Francesca McDonald from the European Space Agency led a group in building the unique tool to thoroughly pierce the container holding the lunar sample without letting any gas escape. Together, theyve developed and rigorously checked an unique system to collect the incredibly valuable material– gas and strong– that is sealed inside the containers.
On, February 11, the group began the careful, months-long procedure to eliminate the sample by very first opening the external protective tube and capturing any gas within. Zeigler and his group knew what gases should exist inside the outer container and found whatever was as anticipated. Television seemed to contain no lunar gas, showing the seal on the inner sample tube was still most likely intact. On February 23, the group began the next action: a multi-week procedure of piercing the inner container and slowly collecting any lunar gases that are ideally still inside.
After the gas extraction procedure is completed, the ARES team will prepare to thoroughly get rid of the soil and rocks from their container, likely later on this spring.
” Understanding the geologic history and development of the Moon samples at the Apollo landing websites will help us prepare for the types of samples that might be encountered throughout Artemis,” said Thomas Zurbuchen, associate administrator of NASAs Science Mission Directorate in Washington. The ANGSA 73001 sample is part of an Apollo 17 drive tube sample collected by astronauts Eugene Cernan and Harrison “Jack” Schmitt in December of 1972. They are particularly interested in the volatiles in these samples from the equatorial regions of the Moon, since they will permit future scientists studying the Artemis samples to much better understand where and what volatiles may be present in those samples.
On, February 11, the group began the careful, months-long procedure to get rid of the sample by very first opening the external protective tube and capturing any gas inside. The tube seemed to consist of no lunar gas, suggesting the seal on the inner sample tube was still most likely intact.
Credit: NASA
People say advantages concern those who wait. NASA thinks 50 years is the best quantity of time as it begins using among the last unopened, Apollo-era lunar samples to read more about the Moon and get ready for a return to its surface.
The sample is being opened at NASAs Johnson Space Center in Houston by the Astromaterials Research and Exploration Science Division (ARES), which shares, safeguards, and research studies NASAs collection of extraterrestrial samples. This work is being led by the Apollo Next Generation Sample Analysis Program (ANGSA), a science group who aim to read more about the sample and the lunar surface area in advance of the upcoming Artemis missions to the Moons South Pole.
Front from left, Drs. Ryan Zeigler, Rita Parai, Francesca McDonald, Chip Shearer and back left from left, Drs. Zach Sharp from the University of New Mexico and Francis McCubbin, Astromaterials Research and Exploration Science Division (ARES) astromaterials curator look on in excitement as gas is extracted into the manifold after the inner tube was pierced. Credit: NASA/James Blair
” Understanding the geologic history and development of the Moon samples at the Apollo landing websites will help us prepare for the types of samples that may be experienced throughout Artemis,” said Thomas Zurbuchen, associate administrator of NASAs Science Mission Directorate in Washington. “Artemis intends to bring back cold and sealed samples from near the lunar South Pole. This is an amazing knowing opportunity to comprehend the tools needed for gathering and transferring these samples, for analyzing them, and for storing them on Earth for future generations of researchers.”
