Vox’s Unexplainable explores Scientific American’s biggest unanswered science questions
Rachel Feltman: Hey listeners, it’s Rachel. Today’s episode is something a little different.
» readAPOD: 2026 September 16 – Webb’s View of M64
Explanation:Sometimes whereHubblefinds darkness,Webbsees light. An example is today’s composite images ofMessier 64(M64), a nearbyspiral galaxyof many names.
» readWild chimpanzees teach youngsters by handing them tools
Chimpanzees are known to make and use a variety of tools, from leaf or moss sponges that soak up water to sticks used to fish forarmy antsoralgae, and even crafting simplespears for hunting. But how
» readThe hole in the ozone layer is healing, but extreme weather may be slowing progress down
A map shows the size and shape of the ozone hole over the South Pole on the day of its maximum extent in 2025. Moderate ozone losses (orange) are visible amid areas of more potent ozone losses (red).
» readScientists reversed biological age in older adults in just 4 weeks
New research from the University of Sydney found that Australians aged 65 to 75 who reduced either dietary fat or animal-based protein showed signs of a lower biological age after just four weeks.
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