A panel of physicists and astronomers will preview emerging theories and experiments aimed at solving the mystery of dark energy, an invisible force that dominates the universe, from 1:45 to 4:45 p.m.

Science experiments that push materials and reactions to dramatic limits. Teens arrested after teacher prank turns deadly in Georgia Is Donald Trump considering a military draft for Iran? What we know ...

Watch an electrifying cola experiment where high voltage brings soda to life! See fizzing, boiling, and glowing cola as ...