Members Can Post Anonymously On This Site
Asteroid 2024 BX1 spotted three hours before impact
-
Similar Topics
-
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.
To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
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
News Media Contacts
Jane J. Lee / Andrew Wang
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-0307 / 626-379-6874
jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov
2025-036
Share
Details
Last Updated Mar 13, 2025 Related Terms
Sentinel-6 Michael Freilich Satellite Climate Science Jet Propulsion Laboratory Oceans Explore More
6 min read Cosmic Mapmaker: NASA’s SPHEREx Space Telescope Ready to Launch
Article 6 days ago 5 min read NASA Turns Off 2 Voyager Science Instruments to Extend Mission
Article 1 week ago 3 min read University High Knows the Answers at NASA JPL Regional Science Bowl
Article 1 week ago Keep Exploring Discover Related Topics
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By European Space Agency
While performing yesterday’s flyby of Mars, ESA’s Hera mission for planetary defence made the first use of its payload for scientific purposes beyond Earth and the Moon. Activating a trio of instruments, Hera imaged the surface of the red planet as well as the face of Deimos, the smaller and more mysterious of Mars’s two moons.
View the full article
-
By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA / Lillian Gipson NASA has selected three university teams to help solve 21st century aviation challenges that could transform the skies above our communities.
As part of NASA’s University Leadership Initiative (ULI), both graduate and undergraduate students on faculty-led university teams will contribute directly to real-world flight research while gaining hands-on experience working with partners from other universities and industry.
By combining faculty expertise, student innovation, and industry experience, these three teams will advance NASA’s vision for the future of 21st century aviation.
koushik datta
NASA Project Manager
This is NASA’s eighth round of annual ULI awards. Research topics include:
New aviation systems for safer, more efficient flight operations Improved communications frequency usage for more effective and reliable information transfer Autonomous flight capabilities that could advance research in areas such as NASA’s Advanced Air Mobility mission “By combining faculty expertise, student innovation, and industry experience, these three teams will advance NASA’s vision for the future of 21st century aviation,” said Koushik Datta, NASA University Innovation project manager at the Agency’s Ames Research Center in California.
This eighth round of annual ULI selections would lead to awards totaling up to $20.7 million for the three teams during the next three years. For each team, the proposing university will serve as lead. The new ULI selections are:
Florida Institute of Technology, Melbourne, Florida
The team will create a framework for developing trustworthy increasingly autonomous aviation safety systems, such as those that could potentially employ artificial intelligence and machine learning.
Team members include: The Pennsylvania State University in University Park; North Carolina Agricultural and Technical State University in Greensboro; University of Florida in Gainesville; Stanford University in California; Santa Fe Community College in New Mexico; and the companies Collins Aerospace of Charlotte in North Carolina; and ResilienX of Syracuse, New York.
University of Colorado Boulder
This team will investigate tools for understanding and leveraging the complex communications environment of collaborative, autonomous airspace systems.
Team members include: Massachusetts Institute of Technology in Cambridge; The University of Texas at El Paso; University of Colorado in Colorado Springs; Stanford University in California; University of Minnesota Twin Cities in Minneapolis, North Carolina State University in Raleigh; University of California inSanta Barbara; El Paso Community College in Texas; Durham Technical Community College in North Carolina; the Center for Autonomous Air Mobility and Sensing research partnership; the company Aurora Flight Sciences, a Boeing Company, in Manassas, Virginia; and the nonprofit Charles Stark Draper Laboratory in Cambridge, Massachusetts.
Embry-Riddle Aeronautical University, Daytona Beach, Florida
This team will research continuously updating, self-diagnostic vehicle health management to enhance the safety and reliability of Advanced Air Mobility vehicles.
Team members include: Georgia Institute of Technology in Atlanta; The University of Texas at Arlington; University of Southern California in Los Angeles; the company Collins Aerospace of Charlotte, North Carolina; and the Argonne National Laboratory.
NASA’s ULI is managed by the agency’s University Innovation project, which also includes the University Student Research Challenge and the Gateways to Blue Skies competition.
Watch the NASA Aeronautics solicitations page for the announcement of when the next opportunity will be to submit a proposal for consideration during the next round of ULI selections.
About the Author
John Gould
Aeronautics Research Mission DirectorateJohn Gould is a member of NASA Aeronautics' Strategic Communications team at NASA Headquarters in Washington, DC. He is dedicated to public service and NASA’s leading role in scientific exploration. Prior to working for NASA Aeronautics, he was a spaceflight historian and writer, having a lifelong passion for space and aviation.
Facebook logo @NASA@NASAaero@NASA_es @NASA@NASAaero@NASA_es Instagram logo @NASA@NASAaero@NASA_es Linkedin logo @NASA Explore More
2 min read NASA Marks 110 Years Since Founding of Predecessor Organization
Article 1 week ago 3 min read NASA’s X-59 Completes Electromagnetic Testing
Article 2 weeks ago 4 min read NASA University Research Program Makes First Award to a Community College Project
Article 2 weeks ago Keep Exploring Discover More Topics From NASA
Missions
Artemis
Aeronautics STEM
Explore NASA’s History
Share
Details
Last Updated Mar 10, 2025 EditorJim BankeContactSteven Holzsteven.m.holz@nasa.gov Related Terms
University Leadership Initiative Aeronautics Flight Innovation Transformative Aeronautics Concepts Program University Innovation View the full article
-
By European Space Agency
Video: 00:01:36 On Wednesday 12 March 2025 ESA’s Hera spacecraft for planetary defence performs a flyby of Mars. The gravity of the red planet shifts the spacecraft’s trajectory towards its final destination of the Didymos binary asteroid system, shortening its trip by months and saving substantial fuel.
Watch the livestream release of images from Hera’s flyby by the mission’s science team on Thursday 13 March, starting at 11:50 CET!
Hera comes to around 5000 km from the surface of Mars during its flyby. It will also image Deimos, the smaller of Mars’s two moons, from a minimum 1000 km away (while venturing as close as 300 km). Hera will also image Mars’s larger moon Phobos as it begins to move away from Mars.
Launched on 7 October 2024, Hera on its way to visit the first asteroid to have had its orbit altered by human action. By gathering close-up data about the Dimorphos asteroid, which was impacted by NASA’s DART spacecraft in 2022, Hera will help turn asteroid deflection into a well understood and potentially repeatable technique.
Hera will reach the Didymos asteroid and its Dimorphos moonlet in December 2026. By gathering crucial missing data during its close-up crash scene investigation, Hera will turn the kinetic impact method of asteroid deflection into a well understood technique that could potentially be used for real when needed.
View the full article
-
By NASA
Intuitive Machines’ IM-2 captured an image March 6, 2025, after landing in a crater from the Moon’s South Pole. The lunar lander is on its side about 820 feet from the intended landing site, Mons Mouton. In the center of the image between the two lander legs is the Polar Resources Ice Mining Experiment 1 suite, which shows the drill deployed.Credit: Intuitive Machines Shortly after touching down inside a crater on the Moon, carrying NASA technology and science on its IM-2 mission, Intuitive Machines collected some data for the agency before calling an early end of mission at 12:15 a.m. CST Friday.
As part of the company’s second Moon delivery for NASA under the agency’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, the IM-2 mission included a drill to bring lunar soil to the surface and a mass spectrometer to look for the presence of volatiles, or gases, that could one day help provide fuel or breathable oxygen to future Artemis explorers.
Planned to land at Mons Mouton, IM-2 touched down at approximately 11:30 a.m. March 6, more than 1,300 feet (400 meters) from its intended landing site. Intuitive Machines said images collected later confirmed the lander was on its side, preventing it from fully operating the drill and other instruments before its batteries were depleted.
The IM-2 mission landed closer to the lunar South Pole than any previous lander.
“Our targeted landing site near the lunar South Pole is one of the most scientifically interesting, and geographically challenging locations, on the Moon,” said Nicky Fox, associate administrator for science at NASA Headquarters in Washington. “Each success and setback are opportunities to learn and grow, and we will use this lesson to propel our efforts to advance science, exploration, and commercial development as we get ready for human exploration of Mars.”
The Nova-C lander, named Athena, captured and transmitted images of the landing site before activating the technology and science instruments. Among the data collected, NASA’s PRIME-1 (Polar Resources Ice Mining Experiment 1) suite, which includes the lunar drill known as TRIDENT (The Regolith and Ice Drill for Exploring New Terrain), successfully demonstrated the hardware’s full range of motion in the harsh environment of space. The Mass Spectrometer Observing Lunar Operations (MSOLO) as part of the PRIME-1 suite of instruments, detected elements likely due to the gases emitted from the lander’s propulsion system.
“While this mission didn’t achieve all of its objectives for NASA, the work that went into the payload development is already informing other agency and commercial efforts,” said Clayton Turner, associate administrator for space technology, NASA Headquarters. “As we continue developing new technologies to support exploration of the Moon and Mars, testing technologies in-situ is crucial to informing future missions. The CLPS initiative remains an instrumental method for achieving this.”
Despite the lander’s configuration, Intuitive Machines, which was responsible for launch, delivery, and surface operations under its CLPS contract, was able to complete some instrument checkouts and collect 250 megabytes of data for NASA.
“Empowering American companies to deliver science and tech to the Moon on behalf of NASA both produces scientific results and continues development of a lunar economy,” said Joel Kearns, deputy associate administrator for Exploration in the Science Mission Directorate at NASA Headquarters. “While we’re disappointed in the outcome of the IM-2 mission, we remain committed to supporting our commercial vendors as they navigate the very difficult task of landing and operating on the Moon.”
NASA’s Laser Retroreflector Array, a passive instrument meant to provide a reference point on the lunar surface and does not power on, will remain affixed to the top deck of the lander. Although Intuitive Machines’ Nova-C Hopper and Nokia’s 4G/LTE Tipping Point technologies, funded in part by NASA, were only able to complete some objectives, they provided insight into maturing technologies ready for infusion into a commercial space application including some checkouts in flight and on the surface.
Intuitive Machines’ IM-2 mission launched at 6:16 p.m., Feb. 26, aboard a SpaceX Falcon 9 rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.
Intuitive Machines has two more deliveries on the books for NASA in the future, with its IM-3 mission slated for 2026, and IM-4 mission in 2027.
To date, five vendors have been awarded a total of 11 lunar deliveries under CLPS and are sending more than 50 instruments to various locations on the Moon, including the Moon’s far side and South Pole region. CLPS contracts are indefinite-delivery/indefinite-quantity contracts with a cumulative maximum contract value of $2.6 billion through 2028.
Learn more about NASA’s CLPS initiative at:
https://www.nasa.gov/clps
-end-
Cheryl Warner / Jasmine Hopkins
Headquarters, Washington
202-358-1600
cheryl.m.warner@nasa.gov / jasmine.s.hopkins@nasa.gov
Natalia Riusech / Nilufar Ramji
Johnson Space Center, Houston
281-483-5111
nataila.s.riusech@nasa.gov / nilufar.ramji@nasa.gov
Share
Details
Last Updated Mar 07, 2025 LocationNASA Headquarters Related Terms
Commercial Lunar Payload Services (CLPS) Artemis Earth's Moon Science & Research Science Mission Directorate Space Technology Mission Directorate 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.