Astronomers Stunned to Stumble on 'Cosmic Horseshoe' With a Black Hole the Size of 36 Billion Suns Experts have detected a ...

Dark energy, the mysterious phenomenon that powers the expansion of the universe, may undergo periodic 'violent transitions' ...

This artist concept depicts a reconstruction of what the Firefly Sparkle galaxy looked like about 600 million years after the big bang if it wasn’t stretched and distorted by a natural effect known as ...