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Obstetricians oppose CDC to recommend more shots for moms

In a first, the American College of Obstetricians & Gynecologists released its own vaccine schedule

The U.S. stockpiles oil in huge underground salt caverns. Here’s why

Salt, with its ability to seal liquid in, is uniquely suited to storing the nation's Strategic Petroleum Reserve

Cleve Moler, Who Unlocked the Power of Computing for Millions, Dies at 86

CLAY RISEN

He built interfaces that allowed engineers, scientists and everyday people to solve difficult problems without having to write the underlying code.

Alan Hale, Sky Watcher Who Created a Comet Sensation, Dies at 68

TRIP GABRIEL

In 1995, he and Thomas Bopp spotted, from different states, the same mysterious object in the sky. What turned out to be a comet was named after them: Hale-Bopp.

She Used A.I. to Create Better Forecasts for Extreme Weather. Then Her Funding Was Cut.

SACHI KITAJIMA MULKEY

Amy McGovern was the director of an A.I. institute dedicated to weather forecasting — until the National Science Foundation ended its funding.

Can black holes send information back in time?

Extremely curved spacetime can warp cause and effect, creating channels for backward communication

Disclosure Day and interspecies communication—alien language isn’t just weird noises

A linguist lays out what communicating with aliens could actually involve—and what that tells us about human language

Crowdsourcing could discover new meteor showers and more

Meteor camera networks can reveal the hidden history of the solar system, and you can assist from your own backyard

SpaceX IPO valuation depends on Starship and orbital AI data centers

Reusable rockets and Starlink made Elon Musk's company dominant in spaceflight. Its record valuation leans on making Starship flights routine and orbital AI data centers real

SpaceX’s historic IPO ignites the new space race

SpaceX's IPO—the largest in history—has out-of-this-world implications for AI, space commerce and extraterrestrial exploration

Steven Spielberg's Disclosure Day gets one major thing wrong about the search for aliens

The new movie Disclosure Day is all about a big, alien secret. But SETI researchers behind the updated post-detection protocol say they aren't in the business of secrets.

The 24 alien books Scientific American recommends

The 24 alien books the Scientific American staff love, from The Hitchhiker's Guide to the Galaxy to Contact and beyond

Renewable Groups Ask Courts to End Pentagon’s ‘Total Halt’ of Wind Power

BRAD PLUMER

More than 100 planned wind farms in 21 states are now stalled indefinitely as the Pentagon delays military reviews once seen as routine.

They Bought a Famous Puzzle in Cryptography. Now They’re Opening It Up.

JOHN SCHWARTZ

A San Francisco company paid nearly $1 million for the solution to an unsolved code in Kryptos, a sculpture on the C.I.A. grounds. Soon it will become an online challenge.

Neil Shubin on Trusted Science in a ‘Deeply Partisan Age’

CARL ZIMMER

An eminent fossil hunter takes the reins at the National Academy of Sciences in a turbulent moment for American researchers.