Push the limits of your imagination as astronomers attempt to grasp the mind-boggling extremes of size, distance and speed within our universe by bringing them down to earth.

Is it true that in space nobody can hear you scream? Our scientists reveal that there are places in the Universe that prove this sci-fi statement wrong.

An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, what's nearby in our galaxy? How do the other objects in our local area influence life on Earth? And, how did Earth's place in the galaxy make it the perfect place for the development of advanced life?

This episode discusses the coldest places in the universe from labs on earth to super cold places in our solar system, galaxy and beyond.

The key to understanding the universe seems to be understanding its smallest components. But reconciling the two has proved to be a tremendous scientific challenges as the behavior in the quantum realm bears little resemblance to the universe we know. This program explains some of the strange behavior scientists have discovered at the smallest scales.

Board a virtual space ship to travel along with a variety of comets; long and short period, sun grazers, comets masquerading as asteroids and comets still in deep freeze in the Oort cloud. Then ride along on the NASA probes that visited nearby comets.

It may seem like seem like science fiction, but the cosmos isn't just something way out there. Many times in human history, objects or forces from space have changed the course of life on earth.