Members Can Post Anonymously On This Site
Giant iceberg breaks away from Antarctic ice shelf
-
Similar Topics
-
By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s Wallops Flight Facility commemorated the start of construction of its new Wallops Island causeway bridge during a groundbreaking ceremony at 10 a.m., Monday, April 14, 2025, on the island.
NASA’s Wallops Flight Facility commemorated the start of construction of its new Wallops Island causeway bridge during a groundbreaking ceremony at 10 a.m., Monday, April 14, 2025, on the island. NASA’s Wallops Flight Facility Facility Director David Pierce, NASA’s Goddard Space Flight Center Associate Center Director Ray Rubilotta, and Virgnia Sen. Bill DeSteph attended the ceremony.NASA/Danielle Johnson The ceremony was held at the base of the old Wallops Island causeway bridge. Virgina state Sen. Bill DeSteph attended the groundbreaking, along with staffers from the offices of Sen. Mark Warner, Sen. Tim Kaine, Congresswomen Jen Kiggans, Sen. Chris Van Hollen, and Sen. Angela Alsobrooks. NASA Wallops Facility Director David Pierce and NASA’s Goddard Space Flight Center Associate Center Director Ray Rubilotta attended on behalf of the agency.
“Much has changed over the decades, but one thing that has remained the same is our reliance on the causeway bridge as the only means for vehicular access to and from the island,” said Pierce. “Our bridge supports a growing portfolio of commercial launch and government partners. The work we do advances science, technology, and national security missions. This vital work for our nation is enabled by our bridge.”
In 2023, NASA Wallops was awarded $103 million in federal funds to fully construct and replace the current 65-year-old causeway bridge that serves as the only vehicular access from NASA Wallops Mainland facilities to its Wallops Island facilities and launch range. After years of exposure to coastal weather and repeated repairs to extend its viability, the existing causeway bridge is reaching the end of its service life.
The new causeway bridge, slated for completion in early 2028, will feature a flatter structure, capable of accommodating the increase in heavier loads transported to and from the island in support of an increased cadence of launch operations by NASA, its tenants, and commercial partners. This vital investment in NASA’s infrastructure supports the launch range’s continued growth, strengthening its role as a key asset in Virginia and the nation.
An architectural rendering showing the new Wallops Island causeway bridge next to the old causeway bridge.Courtesy of Kokosing NASA is partnering with the Federal Highway Administration to lead the delivery of the design-build project. The project has been awarded to Kokosing Construction Company.
For more information on NASA’s Wallops Flight Facility, visit www.nasa.gov/wallops.
Share
Details
Last Updated Apr 14, 2025 Related Terms
Wallops Flight Facility
View the full article
-
By European Space Agency
The European Space Agency's XMM-Newton is playing a crucial role in investigating the longest and most energetic bursts of X-rays seen from a newly awakened black hole. Watching this strange behaviour unfold in real time offers a unique opportunity to learn more about these powerful events and the mysterious behaviour of massive black holes.
View the full article
-
By European Space Agency
For decades, satellites have played a crucial role in our understanding of the remote polar regions. The ongoing loss of Antarctic ice, owing to the climate crisis, is, sadly, no longer surprising. However, satellites do more than just track the accelerating flow of glaciers towards the ocean and measure ice thickness.
New research highlights how ESA’s CryoSat mission has been used to uncover the hidden impact of subglacial lakes – vast reservoirs of water buried deep under the ice – that can suddenly drain into the ocean in dramatic outbursts and affect ice loss.
View the full article
-
By NASA
NASA/Jordan Cochran Thomas Ozoroski, a researcher at NASA’s Glenn Research Center in Cleveland, takes icing accretion measurements in October 2024 as part of transonic truss-braced wing concept research.
In the future, aircraft with long, thin wings supported by aerodynamic braces could help airlines save on fuel costs – but those same wings could be susceptible to ice buildup. In the historic Icing Research Tunnel at NASA Glenn, scientists and engineers are testing a concept for a transonic truss-braced wing. Their goal: to collect important data to inform the design of these potential efficient aircraft of the future.
NASA Glenn can simulate icing conditions in its Icing Research Tunnel to identify potential challenges for new aircraft designs. These tests provide valuable information about how ice builds up on wings and can help identify the most critical icing conditions for safety.
Read more about icing testing at NASA Glenn.
Image credit: NASA/Jordan Cochran
View the full article
-
By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Ice cover ebbs and flows through the seasons in the Arctic (left) and the Antarctic (right). Overall, ice cover has declined since scientists started tracking it half a century ago. Download this visualization from NASA’s Scientific Visualization Studio: https://svs.gsfc.nasa.gov/5099Trent Schindler/NASA’s Scientific Visualization Studio Winter sea ice cover in the Arctic was the lowest it’s ever been at its annual peak on March 22, 2025, according to NASA and the National Snow and Ice Data Center (NSIDC) at the University of Colorado, Boulder. At 5.53 million square miles (14.33 million square kilometers), the maximum extent fell below the prior low of 5.56 million square miles (14.41 million square kilometers) in 2017.
In the dark and cold of winter, sea ice forms and spreads across Arctic seas. But in recent years, less new ice has been forming, and less multi-year ice has accumulated. This winter continued a downward trend scientists have observed over the past several decades. This year’s peak ice cover was 510,000 square miles (1.32 million square kilometers) below the average levels between 1981 and 2010.
In 2025, summer ice in the Antarctic retreated to 764,000 square miles (1.98 million square kilometers) on March 1, tying for the second lowest minimum extent ever recorded. That’s 30% below the 1.10 million square miles (2.84 million square kilometers) that was typical in the Antarctic prior to 2010. Sea ice extent is defined as the total area of the ocean with at least 15% ice concentration.
The reduction in ice in both polar regions has led to another milestone — the total amount of sea ice on the planet reached an all-time low. Globally, ice coverage in mid-February of this year declined by more than a million square miles (2.5 million square kilometers) from the average before 2010. Altogether, Earth is missing an area of sea ice large enough to cover the entire continental United States east of the Mississippi.
“We’re going to come into this next summer season with less ice to begin with,” said Linette Boisvert, an ice scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “It doesn’t bode well for the future.”
To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
Observations since 1978 show that ice cover has declined at both poles, leading to a downward trend in the total ice cover over the entire planet. In February 2025, global ice fell to the smallest area ever recorded. Download this visualization from NASA's Scientific Visualization Studio: https://svs.gsfc.nasa.gov/5521Mark Subbaro/NASA's Scientific Visualization Studio Scientists primarily rely on satellites in the Defense Meteorological Satellite Program, which measure Earth’s radiation in the microwave range. This natural radiation is different for open water and for sea ice — with ice cover standing out brightly in microwave-based satellite images. Microwave scanners can also penetrate through cloud cover, allowing for daily global observations. The DMSP data are augmented with historical sources, including data collected between 1978 and 1985 with the Nimbus-7 satellite that was jointly operated by NASA and the National Oceanic and Atmospheric Administration.
“It’s not yet clear whether the Southern Hemisphere has entered a new norm with perennially low ice or if the Antarctic is in a passing phase that will revert to prior levels in the years to come,” said Walt Meier, an ice scientist with NSIDC.
By James Riordon
NASA’s Earth Science News Team
Media contact: Elizabeth Vlock
NASA Headquarters
Share
Details
Last Updated Mar 27, 2025 LocationNASA Goddard Space Flight Center Related Terms
Earth Earth's Vital Signs General Explore More
1 min read Arctic Sea Ice Near Historic Low; Antarctic Ice Continues Decline
This summer, Arctic sea ice decreased to a its minimum extent on September 11, 2024.…
Article 6 months ago 1 min read Keeping PACE with the Oceans
NASA can detect tiny organisms, phytoplankton, that affect the color of ocean from space, and…
Article 9 months ago 1 min read Antarctic Sea Ice Hits Annual Minimum, Second Lowest On Record
On February 20th, 2024, Antarctic sea ice officially reached its minimum extent for the year.
Article 1 year 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.