Each spring, amateur astronomers attempt the ultimate stargazing challenge—an overnight quest to spot every galaxy, nebula, and star cluster in Charles Messier’s famous catalog. Photographer Alan Dyer ...

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Peter Gratton, Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, economics, and public policy. Peter began covering markets at Multex (Reuters) and has ...

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A new paper makes the strange case for prime numbers at the heart of physics. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.