Planetary scientist Carolyn Porco explains what it takes to look for life beyond Earth, and what conditions are required for life to exist. Porco argues that Saturn’s moon Enceladus—with its plumes of water vapor spewing into space, confirmed organic materials, and evidence of hydrothermal vents at the bottom of its liquid ocean—is the most promising place to look. Could Enceladus be the key to proving once and for all that life is not unique to Earth? What would it mean—both scientifically and spiritually—if we found evidence of a true second genesis right here in our own galactic back yard?
In 2021, a Pentagon report revealed what the US government had denied for decades -- UFOs are real a...
The latest in the study of UFOs from well known UFOlogists, I Want to Believe examines how and why t...
Top Gear presenter James May presents this informative program that examines the historic moon missi...
Venture into deep space for a fascinating look at asteroids, their cosmic origins and the potential ...
William Shatner presents a light-hearted look at how the "Star Trek" TV series have influenced and i...
The Wonder of it All focuses on the human side of the men behind the Apollo missions through candid ...
In a studio setting, Stephen Hawking, Arthur C. Clarke and Carl Sagan (who joins them via satellite)...
Black holes stand at the limit of what we can know. To explore that edge of knowledge, the Event Hor...
A mind-bending, thrilling journey exploring the fragility and wonder of planet Earth, one of the mos...
In unusual circumstances, scientists from different countries work together to achieve a common scie...
After decades of amazing discoveries, spacecraft Cassini embarks on its final - and most daring - mi...
Some 220 miles above Earth lies the International Space Station, a one-of-a-kind outer space laborat...
Join the Mars rovers Spirit and Opportunity for an awe-inspiring journey to the surface of the myste...
Travel alongside the astronauts as they deploy and repair the Hubble Space Telescope, soar above Ven...
With unique access to Nasa, Brian Cox follows Perseverance rover’s search for life on Mars during a ...
Nichelle Nichols' daunting task to launch a national blitz for NASA, recruiting 8,000 of the nation'...
The Hubble Space Telescope has spent more than 30 years scrutinizing the cosmos in an attempt to unr...
A look at the Apollo 11 mission to land on the moon led by commander Neil Armstrong and pilot Buzz A...
Luca Parmitano is the first italian astronaut to perform an extravehicular activity, currently part ...
This is the complete story of NASA's Moon Missions, from Apollo 1 to Apollo 17, told for the first t...