Astronomers have discovered what may be the largest-scale structure in the known universe — a group of galaxy clusters and clusters of galaxy clusters that spans roughly 1.3 billion light-years ...

The key to settling the debate about the organization of the universe turned ... that the Andromeda Nebula was over a million light years away from Earth. It was the largest distance ever measured ...

The nebula is huge, spanning 650 light-years in diameter. It's one of the most intense star-forming regions around, and in fact the largest in ... star known in the universe, called R136a1.

Along with Peter Safran as the co-CEOs of DC Studios, Gunn makes creative decisions that serve as the compass for one of the world’s biggest franchises ... of the DC Universe is likely going ...