Rekindle uses face-tracking biometrics to turn emotions into gameplay, but the same idea could eventually push emotion-aware tech into therapy, safety systems, and interfaces that watch more than ...

You're in a dance club bathed in a neon-purple glow, surrounded by ghostly silhouettes that sway to the music. A stranger at ...

Smithsonian Starstruck lets visitors walk through the Big Bang, brush past the Sun, and gaze into a black hole, all without ...