In this program, scientists, astrobiologists, and astronomers combine scientific fact and a little imagination to create five lines of extraterrestrial evolution and explain how creatures on the surface of Earth can offer a helping hand to understanding life on other planets.

In this episode, Project Gemini advances, and we see how NASA refines the techniques needed for rendezvous. In part 2, we look at Cassini at Saturn. In the probe’s final years of activity, its handlers are asking it to do more complex and risky assignments. Finally, we learn more about Mars in part 4. An interlinked group of satellites and rovers are paving the way for a manned mission to Mars.

Astronaut Russell "Rusty"Schweickart, who traveled into space aboard Apollo 9, introduces this documentary that addresses the questions: what is the universe and could there be life in the universe? Appropriately narrated by actor William Shatner (Star Trek), this program goes beyond the Earth, the Solar System and the Milky Way, deep into the vast reaches of the cosmos. Utilizing new and archival footage, along with computer-generated animation,...

Explorers Hannah, Oliver and Reiann visit Nina in her workshop and discover that light from the sun only shines on one side of the moon.

Host Emily Calandrelli speaks to experts who are learning everything they can about asteroids and their potential impact on earth. From the dinosaur killer to the Chelyabinsk meteor of 2013 - we learn about the destructive power of asteroids. Emily takes a trip to the Ames Vertical Gun Range for an experiment that predicts impact size on the moon and the Earth. Emily also travels to Seattle Washington to meet a company that has a plan to profit from...

The Daedalus mission is in jeopardy as the crew struggle to find a permanent shelter that can provide long-term protection from radiation. The team must locate a suitable site for their settlement before their mission is cut short. In the present day documentary, the European Space Agency and Roscosmos, Russia’s former federal space agency, partner to launch an orbiter that will help future Mars missions prepare for settlement through advanced imagery....

Host Neil deGrasse Tyson features his interview with Bas Lansdorp, co-founder of Mars One, a non-profit organization with the goal of establishing a permanent human settlement on Mars. Comedian co-host Eugene Mirman and former astronaut Mike Massimino join Tyson in the Hall of the Universe to discuss topics including the logistics of getting to Mars, how to sustain human life there, and even speak via live video call to one of the finalists out of...

The Big Bang is when the cosmos started and time itself began. With animation based on space telescope images, NOVA winds back the ages to discover new clues about this ultimate genesis and what happened in the universe’s first few seconds.

Mars was once a blue water-world studded 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?

Ronnie and William visit Nina in her workshop, where they learn everything about the Grand Canyon.