News
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EnvironmentFederally unprotected streams contribute most of the water to U.S. rivers
A 2023 U.S. Supreme Court ruling that ephemeral streams aren’t protected by the Clean Water Act could have sizable ripple effects, a study suggests.
By Claire Yuan -
CosmologyStrange observations of galaxies challenge ideas about dark matter
A new look at how light bends as it travels through the universe could point to an alternative theory of gravity.
By Adam Mann -
Health & MedicineSome people have never gotten COVID-19. An obscure gene may be why
A trial that purposely exposed volunteers to COVID-19 revealed key immunological differences that may explain why some people can dodge SARS-CoV-2.