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As Ebola rages, Moderna and others are racing to develop an mRNA vaccine for the rare Bundibugyo virus driving the current outbreak

The first participant has been treated in a landmark clinical trial of cellular reprogramming, which aims to rejuvenate aging cells

Tungsten is a coveted metal for military uses. Restoring domestic supply could help with ongoing munitions shortages

Mathematicians have considered how to watch every corner of a space—but soccer adds moving players, blocked views and constant action

NASA’s X-59 research aircraft reached its target speed and altitude for the first time on Friday

A study finding that even one drink a day causes health risks was deliberately sidelined by the Trump administration, a former federal public health official alleges

Melting permafrost is releasing carbon into the atmosphere, but scientists may have underestimated just how bad the situation may be, a new analysis finds

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

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

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

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

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

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

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

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

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

This tiny robot might look like a high-tech hamster ball, but it could hasten lunar exploration

Children living in areas with low socioeconomic opportunities have more tired and stressed brains, a new study finds

Researchers have created the first high-resolution global map of the extent of one of Earth’s largest—and least visible—living networks

New results challenge AI’s promise for solving how fluids swirl—and suggest a more human path forward