Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

The largest 3D map of the universe, created based on data from the Dark Energy Spectroscopic Instrument, shows 47 million galaxies in stunning detail.

A newly identified string of galaxies, stretched across tens of millions of light years and slowly turning in space, is forcing astronomers to rethink how structure and motion emerge on the grandest ...