Every time you check the time on your phone, make an online transaction, or use a navigation app, you are depending on the ...

A tomic clocks, which power GPS, online transactions, and data networks, just became more precise. MIT physicists have developed a technique that doubles the accuracy of optical atomic clocks by ...

It's almost race day in Chicago and that will mean thousands of runners and spectators flocking to the city for the biggest run of the year: the 2025 Bank of America Chicago Marathon.

Here's the full start time schedule: Men’s Wheelchair Start: 7:20 a.m. Women’s Wheelchair Start: 7:21 a.m. Grant Park open for spectators: 9:30 a.m. 27th Mile Post-Race Party: 9:30 a.m. – 4:00 p.m.