Month: November 2023

Enlarge (credit: Google)

Earlier this month, one corner of the Internet got a little bit greener, thanks to a first-of-its-kind geothermal operation in the northern Nevada desert. Project Red, developed by a geothermal startup called Fervo, began pushing electrons onto a local grid that includes data centers operated by Google. The search company invested in the project two years ago as part of its efforts to make all of its data centers run on green energy 24/7.

Project Red is small—producing between 2 and 3 megawatts of power, or enough to power a few thousand homes—but it is a crucial demonstration of a new approach to geothermal power that could make it possible to harness the Earth’s natural heat anywhere in the world.

Hot rock is everywhere, with temperatures rising hundreds of degrees Fahrenheit within the first few miles of the surface, but geothermal plants provide just a small fraction of the global electricity supply. That’s largely because they are mostly built where naturally heated water can be easily tapped, like hot springs and geysers. Hot water is pumped to the surface, where it produces steam that powers turbines.

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  China's Tiangong space station orbits nearly 240 miles (380 kilometers) above Earth.

China released new pictures of its Tiangong space station Tuesday as Chinese astronauts and space officials made a public relations visit to Hong Kong. These images, taken about a month ago, show the Tiangong complex in its fully assembled configuration with three modules staffed by three crew members.

A departing crew of three astronauts captured the new panoramic views of the Tiangong station in low-Earth orbit October 30, shortly after departing the outpost to head for Earth at the end of a six-month mission. These are the first views showing the Tiangong station after China completed assembling its three main modules last year.

The Tianhe core module is at the center of the complex. It launched in April 2021 with crew accommodations and life support systems for astronauts. Two experiment modules, named Wentian and Mengtian, launched in 2022. The first team of Chinese astronauts arrived at the station in June 2021, and Tiangong has been permanently staffed by rotating three-person crews since June 2022.