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July 26, 2024
NASA's Curiosity rover discovered pure sulfur on Mars. Plus, monogamous prairie voles may help us understand how our brains respond to love, and how they move on after heartbreak. And researchers developed the first anode-free solid-state battery that’s based on sodium, which is cheaper and more abundant than lithium.
Scientists in the Dark Over Birth of the Moon
Two new studies present very different ideas about how the Moon was formed—a riddle that one scientist says may never be solved.
Curiosity Rover Gets the ‘Scoop’ on Mars
Did the rover shed a piece of plastic while collecting its first scoop of Martian soil?
2012 Nobel Prizes Recognize Pioneering Science
This year’s Nobel laureates changed our understanding of our bodies and the world around us.
Fifty Years Ago, a Bright Idea
Inventor Nick Holonyak describes the creation of the visible light-emitting diode, or LED.
Enter an Optical Illusion
Gravity doesn’t behave as expected in a new art exhibition in New York City.
Tracking the Ozone Hole, as It Waxes and Wanes
The Antarctic ozone hole reaches its largest size by late September—but then it disappears again.
Feds to Debate Marijuana as Medicine
A federal appeals court is set to hear the scientific case for marijuana’s therapeutic effects.
The Secret to Making Ultrastrong ‘Gorilla Glass’
Gorilla Glass isn’t unbreakable. But it’s twice as durable as regular glass—at half the thickness.
Why Online Maps Sometimes Lose Their Way
Mapping streets is easy. The trick is pinning down businesses and giving accurate turn-by-turn directions.
From Stem Cells to Eggs (and Beyond)
Stem cells can be turned into heart, liver, and brain cells—but what about a whole new organism? A study in Science explains the transformation from stem cell to egg to mouse pup.