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

Throughout 2024, social media users shared an image that they claimed shows a solar-powered, glow-in-the-dark bicycle path in Poland that charges during the day and glows at night. People said it was ...

The cooler, denser plasma appears dark against the raging surface of the sun in this view from a NASA spacecraft. When you purchase through links on our site, we may earn an affiliate commission. Here ...