Dark energy is still one of the greatest cosmic mysteries. For all the time, money and telescopes that humanity has used to ...

Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

As the Dark Energy Survey (DES) releases its final results, we caught up with two physicists who've been involved in the project from its early days. In this Q&A, Josh Frieman, DES co-founder and ...