Technology

Sleep Evolved Before Brains. Hydras Are Living Proof

Some of nature’s simplest animals suggest that sleep evolved long before centralized nervous systems.

There’s a Great Whip Spider Boom. What Gives?

The discovery of exotic arachnids reveals as much about the structure of science as it does about the creatures.

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The Covid Lab Leak Theory Is a Tale of Weaponized Uncertainty

Scientists almost never say they’re sure, and it could take years to pin down the pandemic's origins. Until then: People are trying...

Vaccine Milestones in the US, Shots for India, and More...

Catch up on the most important updates from this week.

The Space and Air Forces Launch an LGBTQ Task Force

Ten years after “Don’t ask, don’t tell,” a major general from the Space Force is leading a new inclusion initiative.

NASA’s MOXIE Experiment Is Making Oxygen on Mars

Future crews on the Red Planet will need it to make propellant for the trip home. Scientists are also testing whether oxygen can be...

One Man’s Amazing Journey to the Center of the Bowling...

Mo Pinel spent a career reshaping the ball’s inner core to harness the power of physics. He revolutionized the sport—and spared no...

How Many People Die When Polluters Exceed Their Limits?

A new report tallies the death toll from excess emissions by looking at air pollution and spikes in local ozone levels.

As the US Unmasks, the Pressure Is on for Vaccine Passports

Now that the CDC has relaxed mask requirements, a verification system might help identify who's vaccinated—but it’ll be a technical...

Nature Can Save Humanity From Climate Doom—but Not On Its...

By restoring ecosystems, conservationists can help the land sequester carbon. But it's still no substitute for drastically cutting...