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How NASA wind tunnels help develop safer aircraft, the SLS rocket, and the Orion spacecraft

How NASA wind tunnels help develop safer ...

Find out how NASA wind tunnels help develop safer and more efficient aircraft and why they are also crucial for the SLS rocket, the Orion capsule, and the Artemis II mission. We bring an overview of how these facilities work, their role in testing, and the reasons they remain essential in aeronautics and space programs.

Satellites reveal where Antarctica is retreating: most of the coastline stable, but pockets of accelerated ice loss

Satellites reveal where Antarctica is ...

Find out what the most comprehensive satellite record (1992–2025) reveals about Antarctica’s grounding lines: more than three quarters of the coastline remains stable, but in the Amundsen Sea and around Thwaites, Pine Island and Smith, retreat of up to 42 km is recorded, driven by warmer ocean water and with consequences for sea-level rise.

Dogs in the home change indoor air quality: a study measures CO2, ammonia, particles, and microbes

Dogs in the home change indoor air quality: a ...

Learn how a dog can change the air you breathe at home: in a climate-controlled chamber, scientists measured CO2, ammonia, volatile compounds, coarse particles, and microbes. Large dogs released more CO2, NH3, bacteria, and fungi, and with ozone and petting additional chemical products formed that change exposure.

At the University of Córdoba, a paving block made from shells and industrial waste without cement has been developed

At the University of Córdoba, a paving block ...

Find out how the Belmez team at the University of Córdoba made a pervious paving block without natural sand and conventional cement: the aggregate is made from crushed shells, and the binder is created by alkaline activation of ash and mining residues and by CO2 curing.

ESA is developing, in the CASSANDRA project, a composite that detects damage and self-heals cracks on spacecraft

ESA is developing, in the CASSANDRA project, ...

Find out how ESA and European partners are testing a self-healing composite with optical sensors and built-in heaters: the material recognizes microcracks early, heats locally to 100–140 °C, and can extend the life of reusable launchers and future cryogenic tanks. We report what the experiments have shown so far and what the next steps of the CASSANDRA project are.

UCSF calculated the cost of UV protection: the same SPF 50 sunscreen can cost from $40 to $1,430 per year

UCSF calculated the cost of UV protection: ...

Find out how dermatologists at the University of California, San Francisco calculated what proper sunscreen application really costs. We explain what the recommended “shot glass” amount per body means, why price affects how much people apply, and how clothing and a hat reduce the cost. They compared SPF 50 lotions with similar ingredients and showed a range from a few cents to a few dollars per application.

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