Astronomers have discovered a colossal cosmic structure that’s so big it threatens to undermine our entire understanding of the universe. The Big Ring spans about 3% of the radius of the entire ...

Scientists have discovered an ultra-large structure in the distant universe that calls into question our understanding of the cosmos. The newly uncovered "Big Ring on the Sky" is the second ...

The glorious, billowing Southern Ring Nebula is the cocoon of a dying star — and it has a secret. Scientists have found this nebula to exhibit a double-ring structure that evidences not one, but ...

Scientists have discovered a gargantuan ring-shaped structure – about 1.3 billion light-years in diameter – that they say is so big it challenges our understanding of the universe. Dubbed the Big Ring ...

Submillimeter wavelength radio observations of the Southern Ring Nebula have identified that it's actually a double ring, shaped by the interactions of three stars. When you purchase through links on ...