For decades, astronomers were only able to study the universe's very first stars using theoretical models. Now, observations ...

This image shows five newly discovered superstructures. Quipu (red) is the largest structure ever found in the universe. The others are Shapley (blue), Serpens-Corona Borealis (green), Hercules ...

A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest puzzles. A new study in Monthly Notices of the Royal Astronomical Society ...