Lowell Observatory, 1400 W. Mars Hill Road, Flagstaff. (520) 401-7173. 10 a.m.-10 p.m., $35. The grand opening of the Marley ...

A new study suggests that weekend bouts of exercise ... cognitive health by increasing blood flow to the brain and supporting ...

There is good reason for humanity to be cautious in letting artificial intelligence (AI) be deployed in the field of ...