Paul Sutter 
Enlarge / A computer-generated simulation of cosmic strings. Chris Ringeval reader comments 206 with 108 posters participating Share this story Remember that time in the Lord of the Rings lore when the dwarves of Moria dug too greedily and too … Read more
Physicists have created a system of two connected time crystals, which are strange quantum systems that are stuck in an endless loop to which the normal laws of thermodynamics do not apply. By connecting two time crystals together, the physicists … Read more
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” (Prometheus Books, 2018). Sutter contributed this article to Space.com’s Expert Voices: Op-Ed & Insights. There aren’t a … Read more