In an exclusive tour, I saw Taar’s invisible lasers beaming fiber-fast internet through the air. Experts say it might be a solution to our nation's broadband divide.

New tools, Ultrack and inTRACKtive, improve large-scale 3D cell tracking for developmental biology and other research areas.

We've tested and reviewed products since 1936. Read CR's review of the Xiaomi Watch 2 Pro smartwatches & fitness tracker to find out if it's worth it.