Members Can Post Anonymously On This Site
-
Similar Topics
-
By Space Force
Personnel at the Air Force Accessions Center demonstrated their ability to adapt quickly to evolving accession requirements, resulting in dozens of highly qualified cadets being notified of a pilot career field selection.
View the full article
-
By NASA
NASA/Kim Shiflett In this image from Dec. 11, 2024, the 212-foot-tall SLS (Space Launch System) core stage is lowered into High Bay 2 at the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. With the move to High Bay 2, NASA and Boeing technicians now have 360-degree access to the core stage both internally and externally.
The Artemis II test flight, targeted for launch in 2026, will be NASA’s first mission with crew under the Artemis campaign. NASA astronauts Victor Glover, Christina Koch, and Reid Wiseman, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, will go on a 10-day journey around the Moon and back.
Image credit: NASA/Kim Shiflett
View the full article
-
By USH
The ongoing mystery and debate surrounding UFO and drone sightings across the U.S. continue to captivate public attention. The lack of transparency and definitive answers from government agencies combined with the apparent absence of military action against these drones, has fueled speculation about possible cover-ups or incompetence.
Local, county, and state governments seem to have no knowledge of who is operating these drones, where they originate, or their purpose. Despite this, officials confidently assert that "there is no credible threat." This raises the question: how can they be so certain? The reality suggests they cannot.
Recently, the Pentagon issued a statement following claims by a New Jersey congressman that Iran had deployed a "mothership" off the U.S. East Coast, launching drones. The Pentagon denied any military origin for the drones and ruled out links to known foreign entities, but questions persist about whether critical information is being withheld.
If these drones are not linked to Iran, the U.S., Russia, China, or any other nation, some experts propose they may be part of clandestine "deep state" programs. These programs could involve advanced aerospace technologies being tested by private companies under classified initiatives.
Witness accounts, including those from a New Jersey sheriff and Coast Guard officials, suggest the drones exhibit highly unusual behaviors. These include emerging from the ocean and performing movements like abrupt 90-degree turns—characteristics that could imply the use of advanced propulsion systems not publicly known.
Another theory posits that the drones may not be physical objects at all but rather holographic projections, akin to the controversial "Project Blue Beam" concept. If true, this would explain why attempts to intercept them could fail—they might not physically exist.
The sheer number, endurance, and sophistication of these drones hint at a coordinated operation. Some theorists believe this might be part of a psychological operation designed to distract from pressing political, economic, or social issues. The timing of such events often appears suspiciously aligned with periods of public, economic unrest or uncertainty.
In the event that the "deep state" is orchestrating these phenomena, some fear it could be a prelude to a false flag operation, with motives and consequences yet to be revealed.
The situation remains shrouded in speculation, leaving the public to grapple with more questions than answers.
View the full article
-
By NASA
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
This animation shows data taken by NASA’s PACE and the international SWOT satellites over a region of the North Atlantic Ocean. PACE captured phytoplankton data on Aug. 8, 2024; layered on top is SWOT sea level data taken on Aug. 7 and 8, 2024. NASA’s Scientific Visualization Studio One Earth satellite can see plankton that photosynthesize. The other measures water surface height. Together, their data reveals how sea life and the ocean are intertwined.
The ocean is an engine that drives Earth’s weather patterns and climate and sustains a substantial portion of life on the planet. A new animation based on data from two recently launched missions — NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) and the international Surface Water and Ocean Topography (SWOT) satellites — gives a peek into the heart of that engine.
Physical processes, including localized swirling water masses called eddies and the vertical movement of water, can drive nutrient availability in the ocean. In turn, those nutrients determine the location and concentration of tiny floating organisms known as phytoplankton that photosynthesize, converting sunlight into food. These organisms have not only contributed roughly half of Earth’s oxygen since the planet formed, but also support economically important fisheries and help draw carbon out of the atmosphere, locking it away in the deep sea.
“We see great opportunity to dramatically accelerate our scientific understanding of our oceans and the significant role they play in our Earth system,” said Karen St. Germain, director of the Earth Science Division at NASA Headquarters in Washington. “This visualization illustrates the potential we have when we begin to integrate measurements from our separate SWOT and PACE ocean missions. Each of those missions is significant on its own. But bringing their data together — the physics from SWOT and the biology from PACE — gives us an even better view of what’s happening in our oceans, how they are changing, and why.”
A collaboration between NASA and the French space agency CNES (Centre National d’Études Spatiales), the SWOT’ satellite launched in December 2022 to measure the height of nearly all water on Earth’s surface. It is providing one of the most detailed, comprehensive views yet of the planet’s ocean and its freshwater lakes, reservoirs, and rivers.
Launched in February 2024, NASA’s PACE satellite detects and measures the distribution of phytoplankton communities in the ocean. It also provides data on the size, amount, and type of tiny particles called aerosols in Earth’s atmosphere, as well as the height, thickness, and opacity of clouds.
“Integrating information across NASA’s Earth System Observatory and its pathfinder missions SWOT and PACE is an exciting new frontier in Earth science,” said Nadya Vinogradova Shiffer, program scientist for SWOT and the Integrated Earth System Observatory at NASA Headquarters.
Where Physics and Biology Meet
The animation above starts by depicting the orbits of SWOT (orange) and PACE (light blue), then zooms into the North Atlantic Ocean. The first data to appear was acquired by PACE on Aug. 8. It reveals concentrations of chlorophyll-a, a vital pigment for photosynthesis in plants and phytoplankton. Light green and yellow indicate higher concentrations of chlorophyll-a, while blue signals lower concentrations.
Next is sea surface height data from SWOT, taken during several passes over the same region between Aug. 7 and 8. Dark blue represents heights that are lower than the mean sea surface height, while dark orange and red represent heights higher than the mean. The contour lines that remain once the color fades from the SWOT data indicate areas of the ocean with the same height, much like the lines on a topographic map indicate areas with the same elevation.
The underlying PACE data then cycles through several groups of phytoplankton, starting with picoeukaryotes. Lighter green indicates greater concentrations of this group. The final two groups are cyanobacteria — some of the smallest and most abundant phytoplankton in the ocean — called Prochlorococcus and Synechococcus. For Prochlorococcus, lighter raspberry colors represent higher concentrations. Lighter teal colors for Synechococcus signal greater amounts of the cyanobacteria.
The animation shows that higher phytoplankton concentrations on Aug. 8 tended to coincide with areas of lower water height. Eddies that spin counterclockwise in the Northern Hemisphere tend to draw water away from their center. This results in relatively lower sea surface heights in the center that draw up cooler, nutrient-rich water from the deep ocean. These nutrients act like fertilizer, which can boost phytoplankton growth in sunlit waters at the surface.
Overlapping SWOT and PACE data enables a better understanding of the connections between ocean dynamics and aquatic ecosystems, which can help improve the management of resources such as fisheries, since phytoplankton form the base of most food chains in the sea. Integrating these kinds of datasets also helps to improve calculations of how much carbon is exchanged between the atmosphere and the ocean. This, in turn, can indicate whether regions of the ocean that absorb excess atmospheric carbon are changing.
More About SWOT
The SWOT satellite was jointly developed by NASA and CNES, with contributions from the Canadian Space Agency (CSA) and the UK Space Agency. NASA’s Jet Propulsion Laboratory, managed for the agency by Caltech in Pasadena, California, leads the U.S. component of the project. For the flight system payload, NASA provided the Ka-band radar interferometer (KaRIn) instrument, a GPS science receiver, a laser retroreflector, a two-beam microwave radiometer, and NASA instrument operations. The Doppler Orbitography and Radioposition Integrated by Satellite system, the dual frequency Poseidon altimeter (developed by Thales Alenia Space), the KaRIn radio-frequency subsystem (together with Thales Alenia Space and with support from the UK Space Agency), the satellite platform, and ground operations were provided by CNES. The KaRIn high-power transmitter assembly was provided by CSA.
To learn more about SWOT, visit:
https://swot.jpl.nasa.gov
More About PACE
The PACE mission is managed by NASA Goddard Space Flight Center, which also built and tested the spacecraft and the Ocean Color Instrument, which collected the data shown in the visualization. The satellite’s Hyper-Angular Rainbow Polarimeter #2 was designed and built by the University of Maryland, Baltimore County, and the Spectro-polarimeter for Planetary Exploration was developed and built by a Dutch consortium led by Netherlands Institute for Space Research, Airbus Defence, and Space Netherlands.
To learn more about PACE, visit:
https://pace.gsfc.nasa.gov
News Media Contacts
Jacob Richmond (for PACE)
NASA’s Goddard Space Flight Center, Greenbelt, Md.
jacob.a.richmond@nasa.gov
Jane J. Lee / Andrew Wang (for SWOT)
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-0307 / 626-379-6874
jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov
2024-169
Share
Details
Last Updated Dec 09, 2024 Related Terms
PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem) Climate Science Oceans SWOT (Surface Water and Ocean Topography) Explore More
7 min read Six Ways Supercomputing Advances Our Understanding of the Universe
Article 3 weeks ago 4 min read NASA Data Helps International Community Prepare for Sea Level Rise
Article 4 weeks ago 6 min read Inia Soto Ramos, From the Mountains of Puerto Rico to Mountains of NASA Earth Data
Dr. Inia Soto Ramos became fascinated by the mysteries of the ocean while growing up…
Article 4 weeks ago Keep Exploring Discover Related Topics
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
Members belonging to one of three teams from Oakwood School aim their devices — armed with chocolate-coated-peanut candies — at a target during JPL’s annual Invention Challenge on Dec. 6.NASA/JPL-Caltech Teams competed with homemade devices to try to launch 50 peanut candies in 60 seconds into a target container.NASA/JPL-Caltech More points were awarded for successfully landing the candy into the highest, smallest level of the triangular Plexiglas target — not an easy task.NASA/JPL-Caltech Treats went flying through the air by the dozens at the annual Invention Challenge at NASA’s Jet Propulsion Laboratory.
The 25th Invention Challenge at NASA’s Jet Propulsion Laboratory in Southern California, which welcomed more than 200 students to compete using home-built devices, was pretty sweet this year. Literally.
That’s because the challenge at the Friday, Dec. 6, competition was to construct an automated machine that would launch, within 60 seconds, 50 chocolate-coated-peanut candies over a barrier and into a triangular Plexiglas container 16 feet (5 meters) away. The mood was tense as teachers, parents, and JPL employees watched the “Peanut Candy Toss Contest” from the sidelines, some of them eating the ammunition.
Students on 21 teams from Los Angeles and Orange county middle and high schools turned to catapults, slingshots, flywheels, springs, and massive rubber bands. There was lots of PVC piping. A giant device shaped like a blue bunny shot candy out of its nose with the help of an air compressor, while other entries relied on leaf blowers and vacuums.
A team from Santa Monica High School won the 2024 Invention Challenge at JPL on Dec. 6 with a device was based on a crossbow.NASA/JPL-Caltech Some were more successful than others. Ultimately, it was an old-school design that won first place for a team from Santa Monica High School: a modified crossbow.
“I tried to come up with something that was historically tried and true,” said Steele Winterer, a senior on the team who produced the initial design. Like his teammates, Steele is in the school’s engineering program and helped build the device during class. He described the process as “nerve-wracking,” “messy,” and “disorganized,” but everyone found their role as the design was refined.
Second and third place went to teams from Oakwood School in North Hollywood, which both took a firing-line approach, using four parallel wooden devices, with one student per device firing after each other in quick succession.
Two regional Invention Challenges held at Costa Mesa High School and Augustus Hawkins High School in South L.A. last month had winnowed the field to the 21 teams invited to the final event at JPL. At the finals, three JPL-sponsored teams from out-of-state schools and two teams that included adult engineers faced off in a parallel competition. In this second competition group, retired JPL engineer Alan DeVault took first place, followed by Boston Charter School of Science coming in second, and Centaurus High School from Colorado in third.
Competing with a wooden device at the 2024 Invention Challenge, retired JPL engineer and longtime participant Alan DeVault won first place among JPL-sponsored teams, which included professionals and out-of-state students. Challenge organizer Paul MacNeal kneels at right.NASA/JPL-Caltech Held since 1998 (with a two-year break during the COVID-19 pandemic), the contest was designed by JPL mechanical engineer Paul MacNeal to inspire students to discover a love for building things and solving problems. Student teams spend months designing, constructing, and testing their devices to try to win the new challenge that MacNeal comes up with each year.
“When student teams come to the finals, they are engaged just as engineers are engaged in the work we do here at JPL,” MacNeal said. “It’s engineering for the joy of it. It’s problem-solving but it’s also team building. And it’s unique because the rules change every year. The student teams get to see JPL engineering teams compete side by side. I started this contest to show students that engineering is fun!”
The event is supported by dozens of volunteers from JPL, which is managed by Caltech in Pasadena for NASA.
News Media Contact
Melissa Pamer
Jet Propulsion Laboratory, Pasadena, Calif.
626-314-4928
melissa.pamer@jpl.nasa.gov
2024-166
Share
Details
Last Updated Dec 06, 2024 Related Terms
Jet Propulsion Laboratory Explore More
5 min read NASA JPL Unveils the Dr. Edward Stone Exploration Trail
Article 5 hours ago 4 min read NASA’s C-20A Studies Extreme Weather Events
Article 2 days ago 5 min read NASA’s Europa Clipper: Millions of Miles Down, Instruments Deploying
Article 2 weeks ago Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
Climate Change
Solar System
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.