Discovered in the early 1960s by rocket-borne X-ray detectors, Cygnus X-1 is a binary system containing a supergiant star and a stellar-mass black hole. That black hole is both accreting matter — ...

Since spring training began, the Tampa Bay Rays have used some unusual math to get their point across. First it was Joe Maddon's now-famous mantra "9=8." Then Troy Percival upped the ante by wearing a ...

The Math Forum’s Max Ray will celebrate the release of his new book, Powerful Problem-Solving: Activities for Making Sense with the Mathematical Practices, with a national release event on Wednesday, ...