nerd

09 May 2026

Slashdot

NASA Keeps Track As Mexico City Sinks Into the Ground

An anonymous reader quotes a report from the Guardian: Walking into Mexico City's sprawling central Zocalo is a dizzying experience. At one end of the plaza, the capital's cathedral, with its soaring spires, slumps in one direction. An attached church, known as the Metropolitan Sanctuary, tilts in the other. The nearby National Palace also seems off-kilter. The teetering of many of the capital's historic buildings is the most visible sign of a phenomenon that has been ongoing for more than a century: Mexico City is sinking at an alarming rate. Now, the metropolis's descent is being tracked in real time thanks to one of the most powerful radar systems ever launched into space. Known as Nisar, the satellite can detect minute changes in Earth's surface, even through thick vegetation or cloud cover. "Nisar takes radar imaging observations of Earth to the next level," said Marin Govorcin, a scientist at Nasa's jet propulsion laboratory. "Nisar will see any change big or small that happens on Earth from week to week. No other imaging mission can claim this." Though not the first time that Mexico City's sinking has been observed from space, the Nisar mission has provided a greater sense of how far the sinking spreads and how it changes across different types of land than any other space-based sensor. It has also been able to penetrate areas on the outskirts of the city that were previously challenging to study because of the complex terrain. The implications of the imagery extend far beyond the Mexican capital. "This study of Mexico City speaks to the realm of possibilities that will open up thanks to the Nisar system," said Dario Solano-Rojas, an engineer at the National Autonomous University of Mexico (Unam). "And not just for sinking cities but also for studying volcanoes, for studying the deformation associated with earthquakes, for studying landslides." According to Nasa, the technology is also capable of monitoring the climate crisis, glacier sliding, agricultural productivity, soil moisture, forestry, coastal flooding and more. The Nisar system found that some parts of the city are dropping by more than 2cm a month. "First documented in 1925, the city's sinking is a result of centuries of exploitation of the groundwater," the report says. "Because Mexico City and its surrounds were built on an ancient lake bed, the soil beneath the city is extremely soft. When water is pumped out of the aquifer below, this clay-like earth compacts, resulting in a city that is quietly sinking." The crisis is also self-reinforcing: as the city sinks, aging pipes crack and leak, causing Mexico City to lose an estimated 40% of its water, even as drought and climate change make supplies more fragile.

08 May 2026

Ars Technica

Manufacturing qubits that can move

It's hard to mix electronic manufacturing and flexible geometry.

08 May 2026 11:13pm GMT

Slashdot

Does Fidelity's Reorganization Signal the Beginning of the End for 'Small-Team Agile'?

Longtime Slashdot reader cellocgw writes: Hiding inside another layoff report, Fidelity is reorganizing: "The changes are aimed at moving the teams away from an 'agile' makeup -- comprising smaller, siloed squads -- and toward larger teams built to move faster on projects." OMG, as they say: "Sudden outbreak of common sense." According to the Boston Globe, Fidelity is cutting about 1,000 jobs even as it plans to hire roughly 5,300 new workers, many of them early-career engineers. Half of the 3,300 new workers hired this year "will be in tech or product-related roles," the report says, noting that "about 2,000 of those jobs are currently open, and 400 of them are in tech/product-delivery." "The company also plans to add almost 2,000 new early-career workers, with the goal of making the tech and product-delivery teams more hands-on. In all, that means roughly 5,300 new jobs in the pipeline for Fidelity." The company says AI isn't driving the shift; as cellocgw noted, it's about moving toward larger teams that Fidelity says can move faster on priority projects. The financial services firm also reported a strong 2025 under CEO Abigail Johnson, with managed assets rising 19% from 2024 to $7.1 trillion and revenue climbing 15% to $37.7 billion. "Throughout the company's history, our investments in technology have fueled our growth and customer service capabilities," Johnson wrote in a letter (PDF) included in the company's annual report. "We will continue to prioritize technology initiatives that help us advance digital capabilities, simplify our technology ecosystem, and protect the firm and our customers."

Ars Technica

Trump reportedly plans to fire FDA Commissioner Marty Makary

The plan isn't final and could change, but his ouster would be no surprise.

08 May 2026 10:10pm GMT

Slashdot

Micron Ships Gigantic 245TB SSD

BrianFagioli writes: Micron says it is now shipping the world's highest-capacity commercially available SSD, and the numbers are honestly hard to wrap your head around. The new Micron 6600 ION packs 245TB into a single drive and is aimed squarely at AI infrastructure, hyperscalers, and cloud providers dealing with exploding data growth. According to the company, the SSD can reduce rack counts by 82 percent compared to HDD deployments offering similar raw capacity, while also cutting power usage and cooling requirements. Micron says the drive tops out at roughly 30W, which it claims is about half the power draw of comparable hard drive setups. The announcement also feels like another warning sign for spinning disks in the enterprise. Hard drives still dominate bulk storage because of lower cost per terabyte, but SSD capacities keep climbing into territory that used to belong exclusively to HDDs. Micron is also touting major performance gains, claiming up to 84 times better energy efficiency for AI workloads and dramatically lower latency versus HDD-based systems. While nobody is dropping one of these into a home NAS anytime soon, the idea of a quarter petabyte on a single SSD no longer sounds like science fiction.