Time crystals are a real thing, and researchers have made two of them
March 9, 2017, 12:02 p.m. by Bryan Nelson
This new phase of matter makes a reality out of theoretical physics.
Gravity-defying 'mystery spots' have a mind-bending explanation
March 6, 2017, 8:10 p.m. by Bryan Nelson
There are some strange places around the world where objects appear to roll uphill against gravity.