A Cosmic Ray Event Pinpoints the Viking Landing in Canada

The celestial storm produced carbon-14 atoms found in the rings of a tree felled by Norse explorers, proving they made it to North America 1,000 years ago.

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How Wavelets Let Researchers Transform and Understand Data

Built upon the ubiquitous Fourier transform, these mathematical tools allow unprecedented analysis of continuous signals.

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This Prairie Grassland Project Collects Native Seeds

Young members of the Fort Belknap Indian Community are learning how to identify and save local grasses as part of an effort to restore the land.

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New Booster Approvals, Data on Kids' Shots, and More News

Catch up on the most important updates from this week.

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If Clouds Are Made of Water, How Do They Stay in the Air?

Despite the conventional wisdom, they don’t really float.

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States Are Toughening Up on Genetic Privacy

California’s SB 41 is the latest to tighten regulations on the sensitive data collected by companies like 23andMe or Ancestry.

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This Protein Predicts a Brain’s Future After Traumatic Injury

A blood test of “NfL” proteins answers questions about damage severity that doctors—and families—desperately need.

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Microplastics May Be Cooling—and Heating—Earth’s Climate

Tiny bits of plastic are swirling in the sky, and a new model suggests they could be subtly affecting the climate.

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More Covid Vaccine Boosters Are Coming. Who Should Get Them?

Federal advisers meet again this week to discuss third shots, but it’s still not clear what the best timing is—or what the US owes the world.

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The FAA Weighs the SpaceX Launch Site's Environmental Effects

The Federal Aviation Administration is conducting a review and public hearings involving the space company's expanded site in Boca Chica, Texas.

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