Why Do We Dream? Here’s What Scientists Actually Know
We spend years of our lives dreaming, yet science still can't fully explain why. Here are the leading theories — and what's genuinely known.
Category Science
What Would Actually Happen If Earth’s Magnetic Field Flipped?
Earth's magnetic poles have swapped places many times in the planet's history. Here is what scientists think a reversal would — and would not — do to us.
Why the Moon Is Slowly Drifting Away From Earth — and What It Does to Our Days
Every year the Moon moves about 3.8 centimetres farther from Earth. The reason is tied to the tides — and it is quietly making our days longer.
Earth’s Outer Core Reversed Its Flow Beneath the Pacific — and Scientists Still Can’t Fully Explain It
Around 2010 the molten outer core beneath the Pacific unexpectedly flipped its flow from west to east. ESA satellite data shows the shift has been fading since 2020 — and the cause is still a mystery.