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The contribution of salt marshes to wave attenuation during extreme storms

Nature, Published online: 21 October 2026; doi:10.1038/s41586-026-11145-8

Salt marsh platforms resist erosion under extreme waves, but vegetation damage reduces wave attenuation; substantial wave attenuation by vegetation is mainly limited to low-energy marsh coasts with waves below 1 m.

Octupole-driven spin torque switching of antiferromagnetic tunnel junctions

Nature, Published online: 21 October 2026; doi:10.1038/s41586-026-11172-5

All-antiferromagnetic tunnel junctions can display both a large TMR and a reciprocal switching effect, octupole-driven spin-transfer torque, enabling nanoscale magnetic memory and potentially room-temperature terahertz spintronic devices.

Call of Duty: Modern Warfare 4

Call of Duty: Modern Warfare 4 is the epic conclusion of the Task Force 141 story, launching globally on October 23, 2026. Prior to this, the campaign went live in early access on October 16, followed by the extraction shooter mode, DMZ, on October 20.

This year's Call of Duty is made by Infinity Ward, coming after back-to-back years of Treyarch's Black Ops series. It's fair to say Modern Warfare 4 has a lot riding on it, but early reception has been excellent thanks to a return to form for the campaign.

Modern Warfare 4 is made up of three modes: Campaign, DMZ, and multiplayer, with shared progression across the latter two. Warzone will be integrated with Modern Warfare 4 on November 6, when Season 1 begins.

RTX Spark

RTX Spark is NVIDIA's new local AI-focused Windows PC platform, combining Blackwell RTX graphics and Grace CPU technology into a single processor that brings secure LLMs, high-end creative workflows, and gaming performance to laptops and desktops. With that, NVIDIA positions RTX Spark as a new generation of Windows PCs, with Surface Laptop Ultra as the flagship device.

OEMs are also on board, with RTX Spark laptops launching alongside Microsoft's Surface from brands like HP, Dell, ASUS, and MSI. Our team at Windows Central has followed NVIDIA's efforts closely since its inception and has since gone hands-on with its wave of launch devices. This is everything we know so far about RTX Spark and what we expect to see in the future.

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