Gold is escaping from Earth’s core and other wild things we learned about the planet in 2025

With findings on Earth’s polar extremes and its innermost core, scientists shaped how we look at the planet in 2025 in surprising and fascinating ways.

Historical mysteries solved by science in 2025

Researchers studied fossils, well-preserved remains and even a single fingerprint to solve some of history’s long-standing mysteries this year.
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‘It became a lifestyle’: Man describes injecting himself with snake venom

Tim Friede, a self-taught snake expert from California, injected himself with snake venom more than 650 times over the course of nearly two decades. Now, experts hope his experiments and blood can ...
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Voyager 2 shuts down science experiment as power stores dwindle

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The NASA team ...
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Scientists solve centuries-old mystery of how a cucumber explosively squirts its seeds

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An odd little gourd ...
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These apes can tell when humans don’t know something, study finds

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some great apes ...

Discovery of ancient bee nests in fossils points to a never-before-seen behavior

In a Caribbean cave, researchers discovered hundreds of fossils with bee nests within them. It is the first time this behavior has been recorded, a new study finds.

Story of ‘first Black Briton’ rewritten by advances in ancient DNA technology

An ancient woman thought to have hailed from sub-Saharan Africa and therefore to have been the first known Black Briton actually had fairer skin and was from southern England, researchers using new ...
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Astronomers’ discovery of distant Milky Way-like galaxy challenges our theories of how cosmos evolved

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...
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Scientists explore the anatomy of a ‘zombie volcano’ that’s showing signs of activity

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Can a volcano rise ...
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Inside the scramble to save NASA’s half-billion-dollar, water-hunting moon rover

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A half-billion ...
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‘No legitimate rationale’: Lawmakers raise concerns over what NASA won’t say about DOGE

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some House ...