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A Change of Seasons on Saturn
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By Space Force
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The conference featured keynote speakers, panels of enlisted leaders, and fireside chats, bringing together Hispanic community leaders and advocates to discuss the challenges and opportunities Hispanic service members and civilians face in the Air Force and Space Force.
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By NASA
4 min read
Pioneer of Change: America Reyes Wang Makes NASA Space Biology More Open
America Reyes Wang, the lead of the the Space Biology Biospecimen Sharing Program at NASA’s Ames Research Center in California’s Silicon Valley, stands beside a spacesuit display. Photo courtesy of America Reyes Wang As humans return to the Moon and push on toward Mars, scientists are ramping up research into the effects of space on the body to make sure astronauts stay healthy on longer missions. This research often involves spaceflight studies of rodents, insects, and other models in orbiting laboratories such as the International Space Station. However, space-related biological samples are difficult to get, meaning that researchers who want to study space biology are frequently out of luck.
America Reyes Wang, a KBR employee and the lead of the Space Biology Biospecimen Sharing Program at NASA’s Ames Research Center in California’s Silicon Valley, oversees the team that has changed that. Birthed from an initiative first pioneered in the 1960s, the Biospecimen Sharing Program collects samples and data from NASA non-human space biology studies and makes them available in the public, open NASA Open Science Data Repository (OSDR).
To derive the most benefit from the precious few biology studies taking place in space, Reyes Wang arranges collaborations on space biology dissections with NASA-funded researchers so that her team can collect and preserve unutilized biospecimens for others to use. Outside researchers can request the samples to study in person by writing and submitting proposals. Once analyzed, researchers share their data back with the NASA OSDR for other investigators to access and study.
The ethos of open science is central to Reyes Wang’s approach to her work. “The samples that we work with are so precious,” she said. “To me, it’s a no-brainer — why not share what we can share?”
America Reyes Wang wears personal protective equipment (PPE) while working on an activity for NASA’s Biospecimen Sharing Program. Photo courtesy of America Reyes Wang Reyes Wang aspired to work in the scientific or medical field from a young age, driven by her desire to help people. Her father, who was born in El Salvador and dreamed of being an astronaut after watching the 1969 Moon landing, inspired Reyes Wang to fall in love with space. She also credited her Salvadoran and Mexican family with teaching her the value of understanding different experiences.
“To me, being Hispanic, especially as a Latina in STEM, means recognizing and building upon the hard work and sacrifices of those who came before me, as well as extending a helping hand to those around me for the betterment of us all,” Reyes Wang said. “It also means enjoying and sharing our vibrant cultures.”
As a student at Stanford University, Reyes Wang conducted neurobiology research with rodents, but assumed she would have to choose her love of biology over her love of space. The field of space biology allowed her to combine those interests. Having quietly dreamed of working for NASA for years, she was also thrilled to find that she could work on NASA missions as a space biologist.
If we want to keep up with the pace of humanity’s aspirations to travel further and for longer … open science is one of the best tools we have for achieving those dreams.
America Reyes Wang
Biospecimen Sharing Program Lead
Reyes Wang first found a role supporting NASA as an experiment support scientist for the agency’s Rodent Research Program. While she no longer facilitates research on the International Space Station in her current position, she uses her scientific expertise and collaborative outlook to guide the Biospecimen Sharing Program in a direction that will most help advance science.
Despite space biology’s status as a relatively niche field, Reyes Wang has noted its tremendous impact on the biological sciences, medicine, and technology as a whole. For example, spaceflown biological samples are often used to investigate diseases that affect people on Earth. Reyes Wang’s involvement in accelerating these studies captures her long-held desire to help people.
“Open science gives the world an opportunity to get these important answers much more quickly,” Reyes Wang said. “If we want to keep up with the pace of humanity’s aspirations to travel further and for longer, we need to pick up the pace when it comes to getting the answers, and I think open science is one of the best tools we have for achieving those dreams.”
By Lauren Leese
Web Content Strategist for the Office of the Chief Science Data Officer
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Last Updated Sep 26, 2024 Related Terms
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By NASA
On Aug. 29, 1789, German-born British astronomer William Herschel observed a tiny bright dot orbiting around Saturn. His son later named the object Enceladus. Because of its distance from Earth and proximity to bright Saturn, for the next two centuries little remained known about Enceladus other than its size, orbital parameters, and that it held the honor as the most reflective body in the solar system. It took the Voyager flybys through the Saturn system in the early 1980s and especially the detailed observations between 2005 and 2015 by the Saturn orbiter Cassini to reveal Enceladus as a truly remarkable world, interacting with Saturn and its rings. Harboring a subsurface ocean of salty water, Enceladus may possibly be hospitable to some forms of life.
Left: Portrait (1785) of William Herschel by Lemuel Francis Abbott. Image credit: courtesy National Portrait Gallery, London. Middle: Drawing of Herschel’s 40-foot telescope. Right: Portrait (1867) of John Herschel by Julia Margaret Cameron. Image credit: Metropolitan Museum of Art.
Herschel’s previous astronomical accomplishments include the discovery of Uranus in 1781 and two of its moons, Oberon and Titania, in 1787. He also catalogued numerous objects he termed nebulae, but remained frustrated by the limitations of telescopes of his age. He began to build ever larger instruments, finally building the world’s largest reflecting telescope of its time. At 40 feet long, and with a 49-inch diameter primary mirror weighing a ton, it looked impressive although its optical characteristics did not advance the field as much as he had hoped. Nevertheless, Herschel used this telescope to observe Saturn and its five known moons, looking for others. On Aug. 28, 1789, he observed a bright point orbiting the planet and believed he had discovered a sixth moon. On Sept. 17, he discovered a seventh moon orbiting the ringed planet. He did not name these moons, that task fell to his son John who believed Saturn’s moons should be named after the Titans of Greek mythology. He named the first moon Enceladus and the second Mimas.
Left: Relative sizes of Earth, Earth’s Moon, and Enceladus. Right: Best Voyager 2 image of Enceladus.
For nearly two centuries, Enceladus remained not much more than a point of light orbiting Saturn, just another icy moon in the outer solar system. Astronomers estimated its diameter at around 310 miles and its orbital period around Saturn at 1.4 days, with a mean distance from the planet’s center of 148,000 miles. Enceladus has the distinction as one of the brightest objects in the solar system, reflecting almost 100 percent of the Sun’s light. Unusual telescope observations during the 20th century showed an increase in brightness on its trailing side, with no known explanation at the time. In 1966, astronomers discovered a diffuse ring around Saturn, the E-ring, and found in 1980 that its density peaked near Enceladus. The Voyager 1 spacecraft flew within 125,570 miles of Enceladus during its passage through the Saturn system on Nov. 12, 1980. Its twin Voyager 2 came within 54,000 miles on Aug. 26, 1981, during its flyby. These close encounters enabled the spacecraft to return the first detailed images of the moon, showing various terrains, including heavily cratered areas as well as smooth crater-free areas, indicating a very young surface.
Left: False color image of Enceladus from Cassini showing the tiger stripes at bottom. Middle: Limb view of Enceladus showing plumes of material emanating from its surface. Right: Cassini image of Enceladus backlit by the Sun showing the fountain-like plumes of material.
After the Cassini spacecraft entered orbit around Saturn in July 2004, our understanding of Enceladus increased tremendously, and of course raised new questions. Between 2005 and 2015, Cassini encountered Enceladus 22 times, turning its various instruments on the moon to unravel its secrets. It noted early on that the moon emitted gas and dust or ice particles and that they interacted with the E-ring. Images of the moon’s south polar region revealed cracks on the surface and other instruments detected a huge cloud of water vapor over the area. The moon likely had a liquid subsurface and some of this material reached the outside through these cracks. Scientists named the most prominent of these areas “tiger stripes” and later observations confirmed them as the source of the most prominent jets. During the most daring encounter in October 2015, Cassini came within 30 miles of the Enceladus’ surface, flying through the plume of material emanating from the moon. Analysis of the plumes revealed an organic brew of volatile gases, water vapor, ammonia, sodium salts, carbon dioxide, and carbon monoxide. These plumes replenish Saturn’s E-ring, and some of this material enters Saturn’s upper atmosphere, an interaction unique in the solar system. More recently, the James Webb Space Telescope imaged the water vapor plume emanating from Enceladus’ south pole, extending out 40 times the size of the moon itself. The confirmation of a subsurface ocean of salty water has led some scientists to postulate that Enceladus may be hospitable to some forms of life, making it a potential target for future exploration. Enceladus may yet have more surprises, even as scientists continue to pore over the data returned by Cassini.
Left: James Webb Space Telescope image of a water vapor plume emanating from Enceladus. Right: Illustration of the interaction of Enceladus and Saturn’s E-ring.
Map of Enceladus based on imagery from Cassini, turning our view of Enceladus from a small point of light into a unique world with its own topography.
Events in world history in 1789:
January 29 – Vietnamese emperor Quang Trung defeats Chinese Qing forces at Ngọc Hồi-Đống Đa in one of the greatest military victories in Vietnamese history.
March 10 – In Japan, the Menashi-Kunashir rebellion begins between the Ainu people and the Japanese.
April 7 – Selim III succeeds Abdul Hamid I as Sultan of the Ottoman Empire.
April 28 – Aboard the HMS Bounty in the Pacific Ocean, Fletcher Christian leads the mutiny against Captain William Bligh.
April 30 – Inauguration of George Washington as the first President of the United States of America.
July 14 – Citizens storm The Bastille fortress in Paris during the French Revolution.
September 15 – Birth of American writer James Fenimore Cooper in Burlington, New Jersey.
December 11 – Founding of the University of North Carolina, the oldest public university in the United States.
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