New experiments show Earth’s core may hold vast ‘oceans’ of an essential element for life

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...
CNN

‘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 ...

A football-size creature may have been among the earliest plant-eating land animals

Scientists found a 307 million-year-old fossil, Tyrannoroter heberti, revealing one of the earliest known land vertebrates ...
CNN

Rare deep-sea creatures find livestream fame

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‘Can’t beat the view’: Astronauts discuss life aboard ISS

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Ancient poetry unveils hidden history of critically endangered finless porpoises, scientists say

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