A giant structure lurking in the distant Universe is fundamentally undermining our understanding of how the cosmos evolved.

These are giant, circular arrangements of galaxies found all throughout space. They're actually spheres, the fossils of ...

When two giant planets collide ... so it is a survivor bias that we observed," Dong told Space.com. Breaking space news, the latest updates on rocket launches, skywatching events and more!

Rogan responded by saying that the tech billionaire had a contract with space giant NASA, which could have possibly prevented him from fully speaking his mind on the issue. "[Elon Musk] has ...