Hot box detectors didn’t stop the East Palestine derailment. Research shows another technology might have | CNN

CNN  —  A failing, flaming wheel bearing doomed the rail car that derailed and created a…

Insomnia may be linked to higher risk of heart attack, study says | CNN

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Afraid to sleep indoors: Child survivors of deadly quake left traumatized | CNN

Editor’s Note: A version of this story first appeared in CNN’s Meanwhile in the Middle East…

Murder of Vermont woman solved after more than 50 years using DNA found on a cigarette and the victim’s clothing | CNN

CNN  —  More than 50 years after Rita Curran’s roommate found her strangled to death in…

Earth’s innermost layer is a 400-mile-wide ball of iron, new study suggests | CNN

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Giant footprint reveals the carnivorous dinosaurs that once stalked the Yorkshire coast | CNN

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries,…

Scientists discover fossil of giant 150kg penguin that walked the Earth 57 million years ago

The little tuxedo-wearing penguins of today were once huge. Don’t believe us? Well, a new study…

AI comes up with 40,000 toxic chemicals in 6 hours; scientists warn could be used to make biological weapons

Stealing artists’ work, helping students cheat on tests and now this. Scientists have warned that Artificial…

Launching balloons high into the atmosphere to unload sun-reflecting particles: Big climate solution or colossal disaster? | CNN

CNN  —  When US startup Make Sunsets released two weather balloons into the skies above Mexico’s…

Scientists fear a Great Toxic Dustbowl could soon emerge from the Great Salt Lake | CNN

On the shore of Great Salt Lake, Utah CNN  —  Like the rest of the West,…