The curious minds at What If imagine Earth reshaped like a giant, spinning pizza, exploring gravity effects, weather chaos, and human adaptation.

Thanks to a speed-up of Earth's rotation, the length of the astronomical day and the length of the clock day aren't quite ...

Ocean waves are a vast and steady source of renewable energy, but capturing their power efficiently has long frustrated ...

A fresh analysis of Comet 41P/Tuttle-Giacobini-Kresák observations suggests it abruptly reversed its spin after its last ...

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

In a video from his 2025 mission to the International Space Station, Shukla highlights the challenges of microalgae sampling.

First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

The reversal is thought to be the result of outgassing- when solar heating causes ice on the comet’s surface to sublimate ...

Scientists create toothless liquid gears that rotate on their own and could revolutionize modern industrial engines.

Here’s a thing that happened one day at SPIN back in the ’90s: we all went to the airport. I don’t remember how we got there, or if we arrived together, I don’t remember much at all except that we ...

Scientists scanning the heart of the Milky Way have spotted a tantalizing signal: a possible ultra-fast pulsar spinning every 8.19 milliseconds near Sagittarius A*, the supermassive black hole at our ...

I asked my friend Julie Ménard how Earth formed. She’s a planetary scientist at Washington State University. She told me it started with the Big Bang. That was nearly 14 billion years ago. “The Big ...