DefenseNews

US Navy weapons buyer talks ship production, F-35 upgrade delays

November 2, 2023
WASHINGTON — The U.S. Navy and the Defense Department used the fiscal 2024 budget request to double down on asymmetric advantages over rivals like Russia and China. For the Navy, that took the form of missiles, submarines and unmanned systems. More recently, however, Bill LaPlante, the undersecretary of defense for acquisition and sustainment, has said developing and prototyping these high-end…
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DefenseNews

Navy takes early steps with Australian, UK vendors on shared sub work

November 2, 2023
WASHINGTON — The U.S. Navy is beginning to integrate its industrial base with those of Australia and the United Kingdom, despite Congress not yet passing several measures to enable the trilateral submarine-building arrangement AUKUS. AUKUS will bring about the sale of American submarines to Australia and the development of a new AUKUS-class design, but U.S. Navy Under Secretary Erik Raven…
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Gear in this story

November 2, 2023
Image: Sigma Sigma has shared teasers on its social media pages for the 70-200mm F2.8 DG DN OS lens it announced about three weeks ago, indicating that it is “coming soon”. The lens will be available for L-mount and E-mount bodies and is being marketed as a…
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Gear in this story

November 2, 2023
Image: Canon Canon has announced the RF-S 10-18mm F4.5-6.3 IS STM, a wide-angle zoom lens delivering a full-frame equivalent of 16-29mm on Canon’s RF-mount APS-C cameras. Recent Videos Canon tells us this lens has an all-new optical design and is not based on any previous EF-S or M-mount lens. It’s intended to be an affordable, wide-angle zoom for casual or advanced amateur…
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Gear in this story

November 2, 2023
Image: Canon Canon has announced the RF 200-800mm F6.3-9 IS USM lens, a super-telephoto zoom designed to be lightweight and easy to handhold. Recent Videos Canon says it’s designed for users seeking a super-telephoto lens on a budget. This includes…
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Gear in this story

November 2, 2023
Image: Canon Canon has announced the RF 24-105mm F2.8 L IS USM Z, which it claims is the world’s first 24-105mm F2.8 zoom lens. Recent Videos Canon says it’s designed to be a true hybrid stills/video lens, and several design elements bolster that claim.
NewsSpace

Salts and Organics Observed on Ganymede’s Surface by NASA’s Juno

November 2, 2023
NASA’s Juno mission has observed mineral salts and organic compounds on the surface of Jupiter’s moon Ganymede. Data for this discovery was collected by the Jovian InfraRed Auroral Mapper (JIRAM) spectrometer aboard the spacecraft during a close flyby of the icy moon. The findings, which could help scientists better understand the origin of Ganymede and the composition of its deep ocean, were…
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