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Doubts Grow About the Biosignature Approach to Alien-Hunting
Recent controversies bode ill for the effort to detect life on other planets by analyzing the gases in their atmospheres.
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These Eyes Shine Light on the Path of Evolution
The visual systems of a group of mollusks reveal how future evolution depends on the past.
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How Quickly Do Large Language Models Learn Unexpected Skills?
A new study suggests that so-called emergent abilities actually develop gradually and predictably, depending on how you measure them.
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What Your Brain Is Doing When You’re Not Doing Anything
On autopilot, the mind reveals new connections. -
How to Guarantee the Safety of Autonomous Vehicles
The key to preventing crashes is to know what you don’t know. -
Cells Across the Body Talk to Each Other About Aging
When mitochondria stop communicating, the biological clock starts winding down. -
Earth May Not Be Toast
When our sun expands into a giant red star, it might not devour its third planet, after all. -
We Were Wrong About Online Algorithms
Three computer scientists disprove a long-standing idea about imperfect information.