NASA could be weeks away from its biggest test in decades

The NASA Artemis II mission, set to lift off as soon as February, will mark the first time astronauts have aimed to venture beyond near-Earth orbit since 1972.

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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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 ...
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‘No legitimate rationale’: Lawmakers raise concerns over what NASA won’t say about DOGE

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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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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 ...

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.
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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 ...

Does science agree it’s better to give than receive? A doctor explains

Research shows that giving time, money or support to others is associated with benefits to well-being. But doing so isn’t always beneficial. Dr. Leana Wen explains.