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Maynard Lynch @kirk25_cy56 thêm blog in Science
2025-06-24 16:46:04

Mysterious Signal from 57-Year-Old Inactive NASA Satellite Reaches Earth

A little over a year ago, scientists in Australia picked up a brief burst of electromagnetic radiation. The pulse was so strong that it eclipsed all other signals coming from the sky, but its origins were unknown. After digging through the data, the team discovered that the source wasn’t a distant celestial object but rather a zombie satellite left...

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Archibald Jerde @orville70_waE3 thêm blog in Science
2025-06-13 17:35:03

NASA Satellite Detects Large Volume of Wastewater Discharge off California Coast

In 2022, NASA’s Jet Propulsion Laboratory launched a satellite sensor to map minerals in the Earth’s dusty, arid regions. But that’s not all it’s useful for—in a new study, scientists used the spectroscopic tool to study massive amounts of sewage flowing into the sea off the Southern California coast. Every year, millions of gallons of untreated and...

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