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October 2026

Transportation

Musk explains why Tesla Robotaxi is not running at night, and lidar is the answer

Elon Musk says the main thing holding back Tesla Robotaxi’s night hours is that the cars have a hard time seeing pets in the dark. His example was “grey kittens on grey tarmac.” That’s a low-light, low-contrast detection problem, which is the textbook weakness of cameras and the exact thing lidar and radar handle. Musk has spent years calling those sensors a “crutch” and a “fool’s errand.” more…

Science

This protective enzyme could help stop fatty liver disease from getting worse

Scientists have identified an enzyme that may act as a natural defense against the worsening of fatty liver disease, which affects an estimated 100 million Americans. The enzyme, called UBE2N, helps liver cells clear away damaged mitochondria and break down fat, potentially preventing the inflammation, scarring, and cell damage associated with the more dangerous condition MASH.

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Science

ESA’s Juice just used Earth as a slingshot to Jupiter

ESA’s Juice spacecraft raced past Earth on September 28, using our planet’s gravity to dramatically reshape its path toward Jupiter without burning much fuel. The flyby changed its direction by 20 degrees and increased its speed by 3.5 km/s, while also giving scientists a rare chance to test its instruments on Earth and the Moon.

Transportation

I tried taking the budget-priced Ride1Up Roadster V3 e-bike off-roading. Here’s what happened next

The Ride1Up Roadster V3 is, for all intents and purposes, is a budget-focused daily driver urban bike. It’s not really a gravel bike. Maybe if you stand back a bit and squint, you could give it a bit more of a gravel bike interpretation. But ultimately, it’s a lightweight, affordable urban e-bike with decent multi-role tires that I mostly use for cruising around bike lanes and city streets. So naturally, yesterday I took it on a 38 km (24 mile) ride where I spent most of the time off-road. more…

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