Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda ...

The universe is expanding, and while that fact is fascinating, it also creates a question that trips people up: if […] ...

People have been asking why space is dark despite being filled with stars for so long that this question has a special name – Olbers’ paradox. Astronomers estimate that there are about 200 billion ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Why didn’t the universe annihilate itself moments ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda Cold Dark Matter, or ΛCDM, it weaves together dark energy, dark matter, and ...