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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Astronauts Victor Glover and Christina Koch tour the Arc Jet Facility at NASA’s Ames Research Center, learning more about the testing equipment’s capabilities to analyze thermal protection systems from George Raiche, thermophysics facilities branch chief at Ames.NASA/Donald Richey As NASA prepares to send astronauts to the Moon aboard the Orion spacecraft, research, testing, and development at NASA’s Ames Research Center in California’s Silicon Valley has played a critical role.
Recently, Ames welcomed Artemis II astronauts Christina Koch and Victor Glover and Orion leaders Debbie Korth, deputy program manager, and Luis Saucedo, deputy crew and service module manager, to tour Ames facilities that support the Orion Program and celebrate the achievements of employees.
The group started their visit at the Arc Jet Complex, where researchers use extremely hot, high-speed gases to simulate the intense heat of atmospheric reentry before visiting the Sensors & Thermal Protection Systems Advanced Research Laboratories. The team works to develop sensors and flight instrumentation that measure heat shield response throughout a mission.
These systems were used to develop and test Orion’s thermal protection system to ensure the safety of astronauts during future missions. After the successful return of the Artemis I Orion spacecraft, Ames research was essential when analyzing unexpected charring loss on the heat shield.
Debbie Korth, Orion deputy program manager, presents awards to the Ames workforce at the Orion Circle of Excellence Awards Ceremony, while astronauts Christina Koch and Victor Glover look on.NASA/Donald Richey The visit culminated in an award ceremony to honor employees with outstanding performance and a legacy of service to the Orion Program. Thirty-two employees were honored for their individual or team contributions.
“The Ames workforce has played an important role in developing, testing, and validating the Orion spacecraft’s thermal protection system as well as supporting its software and guidance, navigation, and control,” said Eugene Tu, NASA Ames center director. “I’m pleased to see their contributions recognized and celebrated by program leadership and two of the astronauts whose safety and success were in mind when ensuring these systems are safe, reliable, and the highest quality possible.”
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Last Updated Apr 02, 2025 Related Terms
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
The Crew Module Test Article (CMTA), a full scale mockup of the Orion spacecraft, is seen in the Pacific Ocean as teams practice Artemis recovery operations during Underway Recovery Test-12 onboard USS Somerset off the coast of California, Saturday, March 29, 2025. NASA/Bill Ingalls Preparations for NASA’s next Artemis flight recently took to the seas as a joint NASA and Department of Defense team, led by NASA’s Exploration Ground Systems Program, spent a week aboard the USS Somerset off the coast of California practicing procedures for recovering the Artemis II spacecraft and crew.
Following successful completion of Underway Recovery Test-12 (URT-12) on Monday, NASA’s Landing and Recovery team and their Defense Department counterparts are certified to recover the Orion spacecraft as part of the upcoming Artemis II test flight that will send NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon.
“This will be NASA’s first crewed mission to the Moon under the Artemis program,” said Lili Villarreal, the landing and recovery director for Artemis II. “A lot of practice led up to this week’s event, and seeing everything come together at sea gives me great confidence that the air, water, ground, and medical support teams are ready to safely recover the spacecraft and the crew for this historic mission.”
A wave breaks inside the well deck of USS Somerset as teams work to recover the Crew Module Test Article (CMTA), a full scale replica of the Orion spacecraft, as they practice Artemis recovery operations during Underway Recovery Test-12 off the coast of California, Thursday, March 27, 2025.NASA/Joel Kowsky Once Orion reenters Earth’s atmosphere, the capsule will keep the crew safe as it slows from nearly 25,000 mph to about 325 mph. Then its system of 11 parachutes will deploy in a precise sequence to slow the capsule and crew to a relatively gentle 20 mph for splashdown off the coast of California. From the time it enters Earth’s atmosphere, the Artemis II spacecraft will fly 1,775 nautical miles to its landing spot in the Pacific Ocean. This direct approach allows NASA to control the amount of time the spacecraft will spend in extremely high temperature ranges.
The Artemis II astronauts trained during URT-11 in February 2024, when they donned Orion Crew Survival System suits and practiced a range of recovery operations at sea using the Crew Module Test Article, a stand -in for their spacecraft.
For the 12th training exercise, NASA astronauts Deniz Burnham and Andre Douglas, along with ESA (European Space Agency) astronaut Luca Parmitano, did the same, moving from the simulated crew module to USS Somerset, with helicopters, a team of Navy divers in small boats, NASA’s open water lead – a technical expert and lead design engineer for all open water operations – as well as Navy and NASA medical teams rehearsing different recovery scenarios.
Grant Bruner, left, and Gary Kirkendall, right, Orion suit technicians, are seen with ESA (European Space Agency) astronaut Luca Parmitano, second from left, and NASA astronauts Deniz Burnham, center, and Andre Douglas, as they prepare to take part in Artemis recovery operations as part of Underway Recovery Test-12 onboard USS Somerset off the coast of California, Thursday, March 27, 2025. NASA/Joel Kowsky “Allowing astronauts to participate when they are not directly involved in a mission gives them valuable experience by exposing them to a lot of different scenarios,” said Glover, who will pilot Artemis II. “Learning about different systems and working with ground control teams also broadens their skillsets and prepares them for future roles. It also allows astronauts like me who are assigned to the mission to experience other roles – in this case, I am serving in the role of Joe Acaba, Chief of the Astronaut Office.”
NASA astronaut and Artemis II pilot Victor Glover, right, speaks to NASA astronauts Andre Douglas and Deniz Burnham as they prepare to take part in practicing Artemis recovery procedures during Underway Recovery Test-12 onboard USS Somerset off the coast of California, Friday, March 28, 2025.NASA/Joel Kowsky NASA astronaut Deniz Burnham smiles after landing in a Navy helicopter onboard USS Somerset during Underway Recovery Test-12 off the coast of California, Thursday, March 27, 2025.NASA/Bill Ingalls As the astronauts arrive safely at the ship for medical checkouts, recovery teams focus on returning the spacecraft and its auxiliary ground support hardware to the amphibious transport dock.
Navy divers attach a connection collar to the spacecraft and an additional line to a pneumatic winch inside the USS Somerset’s well deck, allowing joint NASA and Navy teams to tow Orion toward the ship. A team of sailors and NASA recovery personnel inside the ship manually pull some of the lines to help align Orion with its stand, which will secure the spacecraft for its trip to the shore. Following a safe and precise recovery, sailors will drain the well deck of water, and the ship will make its way back to Naval Base San Diego.
The Artemis II test flight will confirm the foundational systems and hardware needed for human deep space exploration, taking another step toward missions on the lunar surface and helping the agency prepare for human missions to Mars.
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Allison Tankersley
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Last Updated Mar 31, 2025 Related Terms
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By NASA
Technicians with NASA and Lockheed Martin fitted three spacecraft adapter jettison fairing panels onto the service module of the agency’s Orion’s spacecraft. The operation completed on Wednesday, March 19, 2025, inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida.
The European-built service module is the powerhouse that will propel the spacecraft to the Moon. Its four solar array wings which were installed to its exterior in early March. The latest addition of fairing panels on Orion’s service module will protect the solar array wings, shielding them from the heat, wind, and acoustics of launch and ascent, and also help redistribute the load between Orion and the massive thrust of the SLS (Space Launch System) rocket during liftoff and ascent. Once the spacecraft is above the atmosphere, the three fairing panels will separate from the service module, allowing the wings to unfurl.
In addition to power, the service module will provide propulsion and life support including thermal control, air, and water for the Artemis II test flight, NASA’s first mission with crew under the Artemis campaign that will send NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon.
Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.
Image credit: NASA/Glenn Benson
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Communities in coastal areas such as Florida, shown in this 1992 NASA image, are vulnerable to the effects of sea level rise, including high-tide flooding. A new agency-led analysis found a higher-than-expected rate of sea level rise in 2024, which was also the hottest year on record.NASA Last year’s increase was due to an unusual amount of ocean warming, combined with meltwater from land-based ice such as glaciers.
Global sea level rose faster than expected in 2024, mostly because of ocean water expanding as it warms, or thermal expansion. According to a NASA-led analysis, last year’s rate of rise was 0.23 inches (0.59 centimeters) per year, compared to the expected rate of 0.17 inches (0.43 centimeters) per year.
“The rise we saw in 2024 was higher than we expected,” said Josh Willis, a sea level researcher at NASA’s Jet Propulsion Laboratory in Southern California. “Every year is a little bit different, but what’s clear is that the ocean continues to rise, and the rate of rise is getting faster and faster.”
This graph shows global mean sea level (in blue) since 1993 as measured by a series of five satellites. The solid red line indicates the trajectory of this increase, which has more than doubled over the past three decades. The dotted red line projects future sea level rise.NASA/JPL-Caltech In recent years, about two-thirds of sea level rise was from the addition of water from land into the ocean by melting ice sheets and glaciers. About a third came from thermal expansion of seawater. But in 2024, those contributions flipped, with two-thirds of sea level rise coming from thermal expansion.
“With 2024 as the warmest year on record, Earth’s expanding oceans are following suit, reaching their highest levels in three decades,” said Nadya Vinogradova Shiffer, head of physical oceanography programs and the Integrated Earth System Observatory at NASA Headquarters in Washington.
Since the satellite record of ocean height began in 1993, the rate of annual sea level rise has more than doubled. In total, global sea level has gone up by 4 inches (10 centimeters) since 1993.
This long-term record is made possible by an uninterrupted series of ocean-observing satellites starting with TOPEX/Poseidon in 1992. The current ocean-observing satellite in that series, Sentinel-6 Michael Freilich, launched in 2020 and is one of an identical pair of spacecraft that will carry this sea level dataset into its fourth decade. Its twin, the upcoming Sentinel-6B satellite, will continue to measure sea surface height down to a few centimeters for about 90% of the world’s oceans.
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This animation shows the rise in global mean sea level from 1993 to 2024 based on da-ta from five international satellites. The expansion of water as it warms was responsible for the majority of the higher-than-expected rate of rise in 2024.NASA’s Scientific Visualization Studio Mixing It Up
There are several ways in which heat makes its way into the ocean, resulting in the thermal expansion of water. Normally, seawater arranges itself into layers determined by water temperature and density. Warmer water floats on top of and is lighter than cooler water, which is denser. In most places, heat from the surface moves very slowly through these layers down into the deep ocean.
But extremely windy areas of the ocean can agitate the layers enough to result in vertical mixing. Very large currents, like those found in the Southern Ocean, can tilt ocean layers, allowing surface waters to more easily slip down deep.
The massive movement of water during El Niño — in which a large pool of warm water normally located in the western Pacific Ocean sloshes over to the central and eastern Pacific — can also result in vertical movement of heat within the ocean.
Learn more about sea level:
https://sealevel.nasa.gov
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Last Updated Mar 13, 2025 Related Terms
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By USH
Let’s talk about Artificial Intelligence! How many people are actually aware of the rapid rise of AI and the potential risks it poses to humanity’s future? Do you recognize these dangers, or do you choose to ignore them, turning a blind eye to the reality of AI’s impact?
An increasing number of people are becoming aware of AI's rapid rise, yet many still unknowingly rely on AI-powered technologies. Studies show that while nearly all Americans use AI-integrated products, 64% remain unaware of it.
AI adoption is expanding, by 2023, 55% of organizations had implemented AI technologies, and nearly 77% of devices incorporated AI in some form. Despite this prevalence, only 17% of adults can consistently recognize when they are using AI.
With growing awareness comes rising concern. Many fear job displacement, while others worry about AI’s long-term risks. A survey found that 29% of respondents see advanced AI as a potential existential threat, and 20% believe it could cause societal collapse within 50 years.
A June 2024 a study across 32 countries revealed that 50% of people feel uneasy about AI. As AI continues to evolve, how many truly grasp its impact—and the risks it may pose for humanity’s future?
Now, a new paper highlights the risks of artificial general intelligence (AGI), arguing that the ongoing AI race is pushing the world toward mass unemployment, geopolitical conflict, and possibly even human extinction. The core issue, according to researchers, is the pursuit of power. Tech firms see AGI as an opportunity to replace human labor, tapping into a potential $100 trillion economic output. Meanwhile, governments view AGI as a transformative military tool.
Researchers in China have already developed a robot controlled by human brain cells grown in a lab, dubbed a "brain-on-chip" system. The brain organoid is connected to the robot through a brain-computer interface, enabling it to encode and decode information and control the robotic movements. By merging biological and artificial systems, this technology could pave the way for developing hybrid human-robot intelligence.
However, experts warn that superintelligence, once achieved, will be beyond human control.
The Inevitable Risks of AGI Development. 1. Mass Unemployment – AGI would fully replace cognitive and physical labor, displacing workers rather than augmenting their capabilities.2. Military Escalation – AI-driven weapons and autonomous systems increase the likelihood of catastrophic conflict.3. Loss of Control – Superintelligent AI will develop self-improvement capabilities beyond human comprehension, rendering control impossible.4. Deception and Self-Preservation – Advanced AI systems are already showing tendencies to deceive human evaluators and resist shutdown attempts.
Experts predict that AGI could arrive within 2–6 years. Empirical evidence shows that AI systems are advancing rapidly due to scaling laws in computational power. Once AGI surpasses human capabilities, it will exponentially accelerate its own development, potentially leading to superintelligence. This progression could make AI decision-making more sophisticated, faster, and far beyond human intervention.
The paper emphasizes that the race for AGI is occurring amidst high geopolitical tensions. Nations and corporations are investing hundreds of billions in AI development. Some experts warn that a unilateral breakthrough in AGI could trigger global instability—either through direct military applications or by provoking adversaries to escalate their own AI efforts, potentially leading to preemptive strikes.
If AI development continues unchecked, experts warn that humanity will eventually lose control. The transition from AGI to superintelligence would be akin to humans trying to manage an advanced alien civilization. Super intelligent AI could take over decision-making, gradually making humans obsolete. Even if AI does not actively seek harm, its vast intelligence and control over resources could make human intervention impossible.
Conclusion: The paper stresses that AI development should not be left solely in the hands of tech CEOs who acknowledge a 10–25% risk of human extinction yet continue their research. Without global cooperation, regulatory oversight, and a shift in AI development priorities, the world may be heading toward an irreversible crisis. Humanity must act now to ensure that AI serves as a tool for progress rather than a catalyst for destruction.
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