A vast, geometric feature buried beneath the Pacific Ocean is forcing scientists to rethink what they know about Earth’s deep past. Early mapping suggests a colossal, plateau-like structure near ...

The discovery of a second universe-defying megastructure in the remote universe is making astronomers rethink some of the basic assumptions about cosmology. The Big Ring is the second of these ...

Lurking some nine billion light years away from Earth is what appears to be a so-called cosmic megastructure in the shape of an enormous ring. It’s so large that its existence should be impossible, ...

Astronomers have discovered a ring-shaped cosmic megastructure, the proportions of which challenge existing theories of the universe. The so-called Big Ring has a diameter of about 1.3bn light years, ...

Space is vast and filled with giants: asteroids that can put planets on new evolutionary trajectories, roiling stars, and enormous galaxies. Now, a team of researchers has found some of the hugest ...