Paul M. Sutter is an astrophysicist at The Ohio State University, host of Ask a Spaceman and Space Radio, and author of "Your Place in the Universe." Sutter contributed this article to Space.com's ...
The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...
The large-scale structure of the Universe arises from the gravitational amplification of primordial fluctuations, producing a cosmic web of galaxies, filaments, clusters and voids. At sufficiently ...
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