In a breakthrough that has left astronomers stunned, an international team of scientists led by Northwestern University has spotted a never-before-seen type of supernova. The discovery, published on ...

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

A gravitational lens tripled the event in the night sky and helped astronomers measure the rate at which the universe is expanding. Reading time 4 minutes A remarkable image taken by the Webb Space ...

Earlier this year, a powerful gamma-ray burst traveled through space from a very distant source in the cosmos. The explosion was traced back to the early universe, just millions of years after the Big ...