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NASA's Oldest Astronaut Celebrates 70th Birthday With Return To Earth

Slashdot.org - Tue, 04/22/2025 - 02:00
NASA's oldest active astronaut, Don Pettit, celebrated his 70th birthday by returning to Earth after a seven-month mission aboard the ISS. The Guardian reports: A Soyuz capsule carrying the American and two Russian cosmonauts landed in Kazakhstan on Sunday, Pettit's birthday. "Today at 0420 Moscow time (0120 GMT), the Soyuz MS-26 landing craft with Alexei Ovchinin, Ivan Vagner and Donald (Don) Pettit aboard landed near the Kazakh town of Zhezkazgan," Russia's space agency Roscosmos said. Spending 220 days in space, Pettit, Ovchinin and Vagner orbited the Earth 3,520 times and completed a journey of 93.3m miles over the course of their mission. It was the fourth spaceflight for Pettit, who has logged more than 18 months in orbit during his 29-year career. Nasa said in a statement that Pettit was "doing well and in the range of what is expected for him following return to Earth." A recording of the touchdown can be viewed here. Earlier this year, Pettit managed to take one of the best photos ever captured from space. "When I first saw it, I was dazzled by its beauty," wrote Ars Technica's Eric Berger. "But when I looked further into the image, there were just so many amazing details to be found." "In this image, one can see the core of the Milky Way galaxy, zodiacal light (sunlight diffused by interplanetary dust), streaks of SpaceX Starlink satellites, individual stars, an edge-on view of the atmosphere that appears in burnt umber due to hydroxide emissions, a near-sunrise just over the horizon, and nighttime cities appearing as streaks."

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Frontier Airlines Gold Status Match for All Southwest Rapid Rewards Members

MyMoneyBlog.com - Tue, 04/22/2025 - 00:43

Frontier Airlines is offering a status match promo to their Gold Status for all Southwest Rapid Rewards Members. The status match lasts through December 31st, 2025. Offer is set to expire April 30, 2025. It costs $40 to apply for this status match, but my understanding is that as long as you have a single Frontier flight sometime during 2025 where you’d like to bring any sort of luggage, you’ll basically break-even or better. A single carry-on baggage fee paid at booking starts at $30 and can cost up to $55 ($60 if checked at gate). Standard seat assignments cost from ~$17 to $55.

If you fly Frontier regularly, then this could be a very valuable deal. (I’ve never flown Frontier myself, but I understand that between certain cities, they are often the best deal by far, even with all the various add-on fees.)

Gold Status includes:

  • Priority boarding (Zone 1)
  • Free seat assignment at booking (Preferred). Possible free Premium seat upgrade at check-in.
  • Free carry-on bag.
  • No change or cancellation fees (+7 days from departure).
  • Priority customer care.
  • 14X points per $1 spent at flyfrontier.com.

Selected terms from the fine print:

· All applicants must be current members of the FRONTIER Miles? program. If you’re not currently enrolled, you may do so here.

· Eligible members must hold a valid Southwest Rapid Rewards membership (joined Rapid Rewards before April 16th, 2025) and provide details.

· The FRONTIER Miles Elite Gold Status offer is valid for purchase for a limited time. The offer may change or be withdrawn at any time, including but not limited to the fees and validity period.

· The Instant FRONTIER Miles Elite Gold Status offer provides eligible and approved members Frontier Elite Gold Status through December 31, 2025.

· The upgrade to the member account will be processed within 24-48 hours.

Categories: Finance

The Quest To Build Islands With Ocean Currents In the Maldives

Slashdot.org - Mon, 04/21/2025 - 22:30
An anonymous reader quotes a report from MIT Technology Review: Arete Glacier Initiative has raised $5 million to improve forecasts of sea-level rise and explore the possibility of refreezing glaciers in place. Off one atoll, just south of the Maldives' capital, Male, researchers are testing one way to capture sand in strategic locations -- to grow islands, rebuild beaches, and protect coastal communities from sea-level rise. Swim 10 minutes out into the En'boodhoofinolhu Lagoon and you'll find the Ramp Ring, an unusual structure made up of six tough-skinned geotextile bladders. These submerged bags, part of a recent effort called the Growing Islands project, form a pair of parentheses separated by 90meters (around 300 feet). The bags, each about two meters tall, were deployed in December 2024, and by February, underwater images showed that sand had climbed about a meter and a half up the surface of each one, demonstrating how passive structures can quickly replenish beaches and, in time, build a solid foundation for new land. "There's just a ton of sand in there. It's really looking good," says Skylar Tibbits, an architect and founder of the MIT Self-Assembly Lab, which is developing the project in partnership with the Male-based climate tech company Invena. The Self-Assembly Lab designs material technologies that can be programmed to transform or "self-assemble" in the air or underwater, exploiting natural forces like gravity, wind, waves, and sunlight. Its creations include sheets of wood fiber that form into three-dimensional structures when splashed with water, which the researchers hope could be used for tool-free flat-pack furniture.Growing Islands is their largest-scale undertaking yet. Since 2017, the project has deployed 10 experiments in the Maldives, testing different materials, locations, and strategies, including inflatable structures and mesh nets. The Ramp Ring is many times larger than previous deployments and aims to overcome their biggest limitation. In the Maldives, the direction of the currents changes with the seasons. Past experiments have been able to capture only one seasonal flow, meaning they lie dormant for months of the year. By contrast, the Ramp Ring is "omnidirectional," capturing sand year-round. "It's basically a big ring, a big loop, and no matter which monsoon season and which wave direction, it accumulates sand in the same area," Tibbits says. The approach points to a more sustainable way to protect the archipelago, whose growing population is supported by an economy that caters to 2 million annual tourists drawn by its white beaches and teeming coral reefs. Most of the country's 187 inhabited islands have already had some form of human intervention to reclaim land or defend against erosion, such as concrete blocks, jetties, and breakwaters.

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