Technology
Satellites Keep the World’s Clocks on Time. What if They...
Standardized time is broadcast by satellite networks around the world, but their signals are vulnerable to interference—so the UK...
Humans Are Revisiting the Moon—and the Rules of Spacefaring
The US-led Artemis Accords attempt to update regulations for space exploration—but they raise questions about equity and resource...
This Giant Sprinkler System Can Protect Cities from Wildfires
Two Spanish towns have built a network of towers that douse surrounding trees with recycled water—stopping fire in its tracks.
Polio Is Back in the US and UK. Here’s How That Happened
For every person paralyzed, hundreds or thousands could be infected. It’s a setback for the long-overdue plan to eradicate the virus...
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Egg and Sperm Donors Could Be Required to Share Medical...
In much of the US, donors aren’t obliged to disclose potentially inheritable health conditions. A proposed law could change that.
At Some Colleges, the Fall of Roe Will Weaken Student Health...
As students return to school, many will find restricted campus access to abortion services and information—and perhaps reproductive...
These Trees Are Spreading North in Alaska. That’s Not Good
White spruce trees are expanding into the Arctic tundra with stunning speed, with potentially serious consequences both for the region...
At Long Last, Mathematical Proof That Black Holes Are Stable
The solutions to Einstein’s equations that describe a spinning black hole won’t blow up, even when poked or prodded.
How the Inflation Reduction Act Affects Food and Agriculture
The new US law contains wins for land conservation and Black farmers but misses opportunities for school lunch programs and soil erosion...
Here’s What Happens When Countries Use Bikes to Fight Emissions
If everyone biked as much as the Dutch, we could cut nearly 700 million metric tons of carbon dioxide a year—the equivalent of most...
