Watch H2 Sampler Pack

There are billions of stars in the Universe, but one alone dominates our celestial neighborhood, the Sun. It's so large that within its boundaries you could fit one million Earths, and so powerful that each second it churns out as much energy as one billion one-megaton hydrogen bombs.

At a time when American dreams were in short supply, an iconic engineering marvel rose up through the New York City skyline and inspired a nation. Planned during the 1920s, construction on what would become the world's tallest man-made structure was almost grounded by the Depression.

If ancient aliens visited Earth, what was their legacy, and did they leave behind clues that exist in plain sight such as sophisticated aircraft, complex electrical grids, and intricate construction machinery? Indian Sanskrit texts, dating back to 6000 B.C., describe in varying but vivid detail flying machines called Vimanas. Megalithic stone structures in Egypt reveal evidence of precision saw work. Interpretations of the Jewish Zohar writings offer depictions of a life-sustaining manna machine, eerily similar to chlorella algae processing systems today.

An inside look at the secret protocols, elite security and hidden history of the world's most public of private residences. What is the most secret room in the White House and what makes it so powerful? What secret visitors have been to the White House--invited or not? What kind of background checks are needed to work at the White House? What security measures go into effect if the White House is under attack? For over 200 years, the White House has functioned as a Presidential residence, Executive Office and national command center. But more guarded than the White House itself--are its secrets. Secrets that have remained untold...until now.