Seth Shostak

A journey through the evolution of time travel; from it origins, it’s evolution and influence in science fiction, to the exciting ...

On a late summer evening in 1977, Ohio radio astronomers discovered a strong, interstellar signal that is believed by many to be the best ...

The enterprising alien who wants to visit Earth faces a number of daunting challenges. This program examines the advanced technologies he would ...

What if an extra-terrestrial force attacked Earth? What might that look like and how will the people of Earth respond? Consulting a cast of ...

The search for other life in the Universe begins in our imagination as we travel to undiscovered planets out in deep space.