Members Can Post Anonymously On This Site
-
Similar Topics
-
By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Fans at the 51st Annual Bayou Classic in New Orleans snap a photo with cardboard images of NASA’s Artemis II crew on Nov. 30. NASA/Danny Nowlin NASA was on full display during the 51st Annual Bayou Classic Fan Fest activity on Nov. 30, hosting an informational booth and interacting with event participants. Kicking off the Fan Fest on stage were Ken Newton, director of the NASA Shared Services Center Service Delivery Directorate; Pam Covington, director of the NASA Stennis Office of Communications; and Dawn Davis, chief of the NASA Stennis Engineering & Test Directorate Office of Technology Development.
NASA representatives, including HBCU alumni, supported the morning-long event, providing Fan Fest attendees with promotional items and information about student internship and employment opportunities with the agency.
The annual Bayou Classic event attracts tens of thousands of visitors each year and features several days of activities, including a nationally broadcast football game, involving two Historically Black Colleges and Universities in Louisiana – Southern University in Baton Rouge and Grambling State University in Grambling.
The NASA outreach and engagement effort during this year’s event focused on the theme – There’s Space for Everybody at NASA. It was part of an ongoing agencywide commitment to advance equity and reach deeper into underrepresented and underserved segments of society and was in support of efforts to advance racial equity in the federal government.
NASA at the Bayou Classic Fan Fest video View the full article
-
By NASA
Scientists find that cometary dust affects interpretation of spacecraft measurements, reopening the case for comets like 67P as potential sources of water for early Earth.
Researchers have found that water on Comet 67P/Churyumov–Gerasimenko has a similar molecular signature to the water in Earth’s oceans. Contradicting some recent results, this finding reopens the case that Jupiter-family comets like 67P could have helped deliver water to Earth.
Water was essential for life to form and flourish on Earth and it remains central for Earth life today. While some water likely existed in the gas and dust from which our planet materialized around 4.6 billion years ago, much of the water would have vaporized because Earth formed close to the Sun’s intense heat. How Earth ultimately became rich in liquid water has remained a source of debate for scientists.
Research has shown that some of Earth’s water originated through vapor vented from volcanoes; that vapor condensed and rained down on the oceans. But scientists have found evidence that a substantial portion of our oceans came from the ice and minerals on asteroids, and possibly comets, that crashed into Earth. A wave of comet and asteroid collisions with the solar system’s inner planets 4 billion years ago would have made this possible.
This image, taken by ESA’s Rosetta navigation camera, was taken from a about 53 miles from the center of Comet 67P/Churyumov-Gerasimenko on March 14, 2015. The image resolution is 24 feet per pixel and is cropped and processed to bring out the details of the comet’s activity. ESA/Rosetta/NAVCAM While the case connecting asteroid water to Earth’s is strong, the role of comets has puzzled scientists. Several measurements of Jupiter-family comets — which contain primitive material from the early solar system and are thought to have formed beyond the orbit of Saturn — showed a strong link between their water and Earth’s. This link was based on a key molecular signature scientists use to trace the origin of water across the solar system.
This signature is the ratio of deuterium (D) to regular hydrogen (H) in the water of any object, and it gives scientists clues about where that object formed. Deuterium is a rare, heavier type — or isotope — of hydrogen. When compared to Earth’s water, this hydrogen ratio in comets and asteroids can reveal whether there’s a connection.
Because water with deuterium is more likely to form in cold environments, there’s a higher concentration of the isotope on objects that formed far from the Sun, such as comets, than in objects that formed closer to the Sun, like asteroids.
Measurements within the last couple of decades of deuterium in the water vapor of several other Jupiter-family comets showed similar levels to Earth’s water.
“It was really starting to look like these comets played a major role in delivering water to Earth,” said Kathleen Mandt, planetary scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Mandt led the research, published in Science Advances on Nov. 13, that revises the abundance of deuterium in 67P.
About Kathleen Mandt
But in 2014, ESA’s (European Space Agency) Rosetta mission to 67P challenged the idea that Jupiter-family comets helped fill Earth’s water reservoir. Scientists who analyzed Rosetta’s water measurements found the highest concentration of deuterium of any comet, and about three times more deuterium than there is in Earth’s oceans, which have about 1 deuterium atom for every 6,420 hydrogen atoms.
“It was a big surprise and it made us rethink everything,” Mandt said.
Mandt’s team decided to use an advanced statistical-computation technique to automate the laborious process of isolating deuterium-rich water in more than 16,000 Rosetta measurements. Rosetta made these measurements in the “coma” of gas and dust surrounding 67P. Mandt’s team, which included Rosetta scientists, was the first to analyze all of the European mission’s water measurements spanning the entire mission.
The researchers wanted to understand what physical processes caused the variability in the hydrogen isotope ratios measured at comets. Lab studies and comet observations showed that cometary dust could affect the readings of the hydrogen ratio that scientists detect in comet vapor, which could change our understanding of where comet water comes from and how it compares to Earth’s water.
What are comets made of? It’s one of the questions ESA’s Rosetta mission to comet 67P/Churyumov-Gerasimenko wanted to answer. “So I was just curious if we could find evidence for that happening at 67P,” Mandt said. “And this is just one of those very rare cases where you propose a hypothesis and actually find it happening.”
Indeed, Mandt’s team found a clear connection between deuterium measurements in the coma of 67P and the amount of dust around the Rosetta spacecraft, showing that the measurements taken near the spacecraft in some parts of the coma may not be representative of the composition of a comet’s body.
As a comet moves in its orbit closer to the Sun, its surface warms up, causing gas to release from the surface, including dust with bits of water ice on it. Water with deuterium sticks to dust grains more readily than regular water does, research suggests. When the ice on these dust grains is released into the coma, this effect could make the comet appear to have more deuterium than it has.
Mandt and her team reported that by the time dust gets to the outer part of the coma, at least 75 miles from the comet body, it is dried out. With the deuterium-rich water gone, a spacecraft can accurately measure the amount of deuterium coming from the comet body.
This finding, the paper authors say, has big implications not only for understanding comets’ role in delivering Earth’s water, but also for understanding comet observations that provide insight into the formation of the early solar system.
“This means there is a great opportunity to revisit our past observations and prepare for future ones so we can better account for the dust effects,” Mandt said.
By Lonnie Shekhtman
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Explore More
9 min read Towards Autonomous Surface Missions on Ocean Worlds
Article
31 mins ago
1 min read Coming Spring 2025: Planetary Defenders Documentary
ow would humanity respond if we discovered an asteroid headed for Earth? NASA’s Planetary Defenders…
Article
52 mins ago
5 min read What’s Up: December 2024 Skywatching Tips from NASA
Article
1 day ago
Share
Details
Last Updated Dec 03, 2024 Editor Lonnie Shekhtman Contact Lonnie Shekhtman lonnie.shekhtman@nasa.gov Location Goddard Space Flight Center Related Terms
Comets Goddard Space Flight Center Planetary Science Planetary Science Division Rosetta Science Mission Directorate The Solar System View the full article
-
By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A group of middle school students engage with a model aircraft while learning from NASA experts in the model lab at NASA’s Armstrong Flight Research Center in Edwards, California during an event hosted by NASA’s California Office of STEM Engagement.NASA/Steve Freeman In celebration of National Aviation History Month, experts from NASA’s Armstrong Flight Research Center in Edwards, California, spoke with middle school students during a recent event hosted by NASA’s California Office of STEM Engagement. NASA Armstrong employees shared stories about the center’s role in aviation history and current research projects while also talking about their own paths to working at NASA. During the virtual and in-person event on Nov. 6, Southern California middle school students were presented with the importance of pursing their passions, the value of internships and exploring diverse career opportunities within NASA.
Kicking off the event, NASA Armstrong Center Director Brad Flick talked about his journey from a small town to becoming a NASA engineer. “I never, in my wildest dreams thought I had the opportunity to work for someplace like NASA,” Flick said. “I’ve been here for almost 40 years and at a little part of NASA that most people don’t know exists, right? Which is really cool that we’re tying this to aviation history month, because this is one of the places where aviation history has been made, is being made and will continue to be made.” Flick encouraged students to participate in STEAM programs that integrate the arts with science, technology, engineering, and math and stressed the importance of asking questions and being curious.
A panel of four NASA Armstrong experts – Laurie Grindle, deputy center director; Troy Asher, director of Flight Operations; Nicki Reid, lead operations engineer; and Julio Trevino, operations engineer – shared their stories about their career paths and experiences at NASA.
NASA Armstrong experts share their stories about their career paths and experiences at NASA to middle school students during an event hosted by NASA’s California Office of STEM Engagement at NASA’s Armstrong Flight Research Center in Edwards, California. From left to right: Laurie Grindle, Julio Trevino, Nicki Reid and Troy Asher.NASA/Steve Freeman Reid talked about her initial struggle with math and science and how it didn’t stop her from obtaining an engineering degree and applying for internships, which is what ultimately opened the door for her at NASA. “It was a really cool experience because it gives you a chance to decide whether or not you like the job and I got to learn from different people every summer,” Reid said.
Grindle’s dream as a kid was to become an astronaut and although did not happen for her, her interest in aviation and space continued, which ultimately led to working at NASA as a student. “I had a lot of different opportunities working in different roles. I had fun while doing it and did a job I really enjoyed that made it not like work,” Grindle said.
For Asher, determination and commitment helped him become a pilot. “I remember sitting in the back seat of the airplane, looking out and thinking, ‘I love this. I’m doing this forever,’” Asher said. “But it took me five or six years before I had that moment, and it was the commitment the kept me going.”
A group of middle school students and their teachers sit in the control room for a hands-on experience at NASA’s Armstrong Flight Research Center in Edwards, California during an event hosted by NASA’s California Office of STEM Engagement for National Aviation History Month.NASA/Steve Freeman Stories and experiences like these are important for students to hear to inspire them in their own journeys into adulthood. Students also received tours around the center with stops in the model lab, life support office and control room.
“This was a wonderful opportunity for my seventh-grade students to learn more about careers and career paths in NASA,” said Shauna Tinich, Tropico Middle School teacher. “They were surprised that people other than astronauts and rocket scientists work for NASA, and this excited many of my students.”
NASA’s California Office of STEM Engagement collaborates with the regional STEM community to provide opportunities like these, with the support of Next Gen STEM, to help students in sparking their interest and inspiring the next generation of leaders. To learn more, visit www.nasa.gov/learning-resources.
Share
Details
Last Updated Dec 02, 2024 EditorDede DiniusContactElena Aguirreelena.aguirre@nasa.govLocationArmstrong Flight Research Center Related Terms
Armstrong Flight Research Center Aeronautics Learning Resources Next Gen STEM STEM Engagement at NASA Explore More
4 min read Aaron Yazzie: Bridging Indigenous Heritage and Space Exploration
Article 5 days ago 2 min read Why NASA Is a Great Place to Launch Your Career
Article 1 week ago 3 min read Northwestern University Takes Top Honors in BIG Idea Lunar Inflatables Challenge
Article 2 weeks ago Keep Exploring Discover More Topics From NASA
Armstrong Flight Research Center
Learning Resources
Armstrong People
Armstrong Flight Research Center History
View the full article
-
By NASA
The SpaceX Dragon spacecraft departs the International Space Station as it orbits 264 miles above the south Pacific Ocean northeast of New Zealand.Credit: NASA NASA and its international partners are set to receive scientific research samples and hardware as a SpaceX Dragon spacecraft departs the International Space Station on Thursday, Dec. 5, for its return to Earth.
NASA’s live coverage of undocking and departure begins at 10:50 a.m. EST on NASA+. Learn how to watch NASA content through a variety of platforms, including social media.
The Dragon spacecraft will undock from the forward port of the space station’s Harmony module at 11:05 a.m., and fire its thrusters to move a safe distance away from the station after receiving a command from ground controllers at SpaceX.
After re-entering Earth’s atmosphere, the spacecraft will splash down off the coast of Florida. NASA will not stream the splashdown and will post updates on the agency’s space station blog.
Filled with nearly 6,000 pounds of crew supplies, science investigations, and equipment, the spacecraft arrived to the orbiting laboratory Nov. 5 after it launched Nov. 4 on a Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida for the agency’s SpaceX 31st commercial resupply services mission.
Dragon will carry back to Earth thousands of pounds of supplies and scientific experiments designed to take advantage of the space station’s microgravity environment. Splashing down off the coast of Florida enables quick transportation of the experiments to NASA’s Space Systems Processing Facility at Kennedy Space Center, allowing researchers to collect data with minimal sample exposure to Earth’s gravity.
Scientific hardware and samples returning to Earth include GISMOS (Genes in Space Molecular Operations and Sequencing), which successfully conducted in-orbit sequencing of microbial DNA from the space station water system, and marks the first real look at the microbial population of the water system. In addition, SpaceTED (Space Tissue Equivalent Dosimeter) returns to Earth after collecting data on crew radiation exposure and characterizes the space radiation environment. The dosimeter is a student-developed technology demonstration and effectively operated for 11 months on station – six months longer than intended because of its success.
Additionally, two specimens printed with ESA’s (European Space Agency) Metal 3D Printer, will go to researchers for post-processing and analysis. Researchers will compare the specimens printed in microgravity with those printed on Earth. The goal is to demonstrate the capability to perform metal deposition, or the layering of metals, in 3D under sustained microgravity conditions and manufacture test specimens. Researchers aim to understand the performance and limitations of the chosen technology and become familiar with crewed and remote operations of the instrument onboard a space habitat.
Also returning on spacecraft is the International Space Art and Poetry Contest, which invited students and educators around the world to submit drawings, paintings, or poems. Winning art submissions were printed on station, photographed in the cupola, and will be returned to their creators on Earth. In addition, Plasmonic Bubbles researchers will observe high-speed video of bubble behavior in microgravity to understand fundamental processes that occur on a heated bubble surface. Results may improve understanding of how molecules are deposited on bubble surfaces and enhance detection methods for health care and environmental industries.
For more than two decades, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge, and making research breakthroughs that are not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit. As commercial companies focus on providing human space transportation services and destinations as part of a robust low Earth orbit economy, NASA is focusing more resources on deep space missions to the Moon as part of its Artemis campaign in preparation for future human missions to Mars.
Get breaking news, images and features from the space station on Instagram, Facebook, and X.
Learn more about the International Space Station at:
https://www.nasa.gov/international-space-station
-end-
Claire O’Shea / Joshua Finch
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov / joshua.a.finch@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
Share
Details
Last Updated Dec 02, 2024 LocationNASA Headquarters Related Terms
International Space Station (ISS) Commercial Resupply ISS Research Johnson Space Center SpaceX Commercial Resupply View the full article
-
By NASA
jsc2024e064444 (Sept. 30, 2024) — The crew members of NASA’s SpaceX Crew-10 mission (from left) mission specialist Kirill Peskov of Roscosmos, NASA astronauts Nichole Ayers, pilot, and Anne McClain, commander, along with Mission Specialist Takuya Onishi of JAXA (Japan Aerospace Exploration Agency), pose for a picture during training at SpaceX in Hawthorne, California. SpaceX Digital content creators are invited to register to attend the launch of NASA’s SpaceX Crew-10 mission to carry astronauts to the International Space Station for a science expedition mission as part of NASA’s Commercial Crew Program. This will be the 14th time a SpaceX Dragon spacecraft launched by a Falcon 9 rocket takes crews to the orbital laboratory.
Launch of NASA’s SpaceX Crew-10 mission is targeted for no earlier than February 2025 on a SpaceX Falcon 9 rocket from Florida. The launch will carry NASA astronauts Anne McClain, commander, and Nichole Ayers, pilot, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, mission specialist, along with Roscosmos cosmonaut Kirill Peskov.
If your passion is to communicate and engage the world online, then this is the event for you! Seize the opportunity to see and share the #Crew10 mission launch.
A maximum of 50 social media users will be selected to attend this two-day event and will be given exclusive access to Kennedy.
NASA Social participants will have the opportunity to:
View a crewed launch of the SpaceX Falcon 9 rocket and Dragon spacecraft Tour NASA facilities at Kennedy Space Center Meet and interact with Crew-10 subject matter experts Meet fellow space enthusiasts who are active on social media NASA Social registration for the Crew-10 launch opens on Monday, Dec. 2, and the deadline to apply is at 10 a.m. EDT on Monday, Dec. 16. All social applications will be considered on a case-by-case basis.
APPLY NOW
Do I need to have a social media account to register?
Yes. This event is designed for people who:
Actively use multiple social networking platforms and tools to disseminate information to a unique audience. Regularly produce new content that features multimedia elements. Have the potential to reach a large number of people using digital platforms, or reach a unique audience, separate and distinctive from traditional news media and/or NASA audiences. Must have an established history of posting content on social media platforms. Have previous postings that are highly visible, respected and widely recognized. Users on all social networks are encouraged to use the hashtag #NASASocial and #Crew10. Updates and information about the event will be shared on X via @NASASocial and @NASAKennedy, and via posts to Facebook and Instagram.
How do I register?
Registration for this event opens on Monday, Dec. 2, and closes at 10 a.m. EDT on Monday, Dec. 16. Registration is for one person only (you) and is non-transferable. Each individual wishing to attend must register separately. Each application will be considered on a case-by-case basis.
Can I register if I am not a U.S. citizen?
Yes, this event is open for all to apply.
When will I know if I am selected?
After registrations have been received and processed, an email with confirmation information and additional instructions will be sent to those selected. We expect to send the acceptance notifications by Jan. 24.
What are NASA Social credentials?
All social applications will be considered on a case-by-case basis. Those chosen must prove through the registration process they meet specific engagement criteria.
If you do not make the registration list for this NASA Social, you still can attend the launch offsite and participate in the conversation online. Find out about ways to experience a launch here.
What are the registration requirements?
Registration indicates your intent to travel to NASA’s Kennedy Space Center in Florida and attend the two-day event in person. You are responsible for your own expenses for travel, accommodations, food, and other amenities.
Some events and participants scheduled to appear at the event are subject to change without notice. NASA is not responsible for loss or damage incurred as a result of attending. NASA, moreover, is not responsible for loss or damage incurred if the event is cancelled with limited or no notice. Please plan accordingly.
Kennedy is a government facility. Those who are selected will need to complete an additional registration step to receive clearance to enter the secure areas.
IMPORTANT: To be admitted, you will need to provide two forms of unexpired government-issued identification; one must be a photo ID and match the name provided on the registration. Those without proper identification cannot be admitted.
For a complete list of acceptable forms of ID, please visit: NASA Credentialing Identification Requirements.
All registrants must be at least 18 years old.
What if the launch date changes?
Many different factors can cause a scheduled launch date to change multiple times. If the launch date changes, NASA may adjust the date of the NASA Social accordingly to coincide with the new target launch date. NASA will notify registrants of any changes by email.
If the launch is postponed, attendees may be invited to attend a later launch date, but is not guaranteed.
NASA Social attendees are responsible for any additional costs they incur related to any launch delay. We strongly encourage participants to make travel arrangements that are refundable and/or flexible.
What if I cannot come to the Kennedy Space Center?
If you cannot come to the Kennedy Space Center and attend in person, you should not register for the NASA Social. You can follow the conversation online using #NASASocial.
You can watch the launch on NASA+ or plus.nasa.gov. NASA will provide regular launch and mission updates on @NASA, @NASAKennedy, and @Commercial_Crew, as well as on NASA’s Commercial Crew Program blog.
If you cannot make this NASA Social, don’t worry; NASA is planning many other Socials in the near future at various locations!
Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
ISS National Laboratory
Commercial Crew Spacecraft
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.