Zachary Quinto

On the day of James Kirk's birth, his father dies on his ship in a last stand against a mysterious alien vessel. He was searching for Ambassador Spock, who is a child on Vulcan, disdained by his neighbors for his half-human nature. Twenty years later, Kirk has grown into a young troublemaker. He is inspired by Capt. Christopher Pike to fulfill his potential in Starfleet, even though he annoys his instructors. Suddenly, there is an emergency on Vulcan...

NASA's Cassini explores Saturn for 13 years, looping through its icy rings and its moons. The probe captures stunning ring-moon interactions, but when it finds the ingredients for life on the moon Enceladus, a bittersweet decision is made.

A psychologist practicing conversion therapy has a chance encounter with a young gay activist, resulting in his own epiphany concerning the very practice he was conducting.

Mars was once a blue water-world with active volcanoes. But when its magnetic field and protective atmosphere faded, it became the frozen desert planet we know today. With so many necessary elements in place, did life ever form on Mars?

The rocky planets were born of similar material around the same time. Yet only one of them supports life. Were Earth's neighbors always so extreme and is there somewhere else in the solar system life might flourish?

Vic tries to live a normal life despite Maggie's warning. Charlie Manx puts Bing Partridge to work.

Vic seeks the Wraith and learns she must trust her gift. A body surfaces in Haverhill.

Vic is questioned by the police. Manx lays out his plan for Vic, but things go awry.

Vic meets Maggie, a medium with more questions than answers. Manx visits Haverhill.

The incredible untold story of Edward Snowden, the polarizing figure who exposed shocking illegal surveillance activities by the NSA and became one of the most wanted men in the world. He is considered a hero by some, and a traitor by others.