The Universe

In space travel there is a saying that the first 50 miles and the last 50 miles are the most dangerous.

Some of the world's leading physicists believe they have found startling new evidence showing the existence of universes other than our own.

According to the laws of physics we can never travel faster than the speed of light...or can we? Light speed allows us to see things instantly here on Earth.

As man moves to colonize the cosmos, the realities of sexual relationships and reproduction need to be addressed.

They soar through the heavens, fly through the oceans and glide along land. But these are not creatures found on a wildlife safari. These are life forms from another planet.

At this very moment, celestial forces prowl the Universe and threaten man's very existence. They're asteroids and comets--and they've left their imprint on planet Earth, literally.

When mankind eventually leaves the cradle of Earth and ventures forth into the uncharted territories of the cosmos, where, and what form, will our new homes take? Will they be cities under glass, entrenched in distant alien soils?

It sounds like a Hollywood blockbuster: a deadly asteroid is on a collision course with Earth. But in reality, it's only a matter of time.

Could we be unique in the universe or is there another planet similar to earth somewhere in the cosmos? Is it possible that Alpha Centauri, our nearest star, is home to another earth-like planet?

From stars, galaxies and moons to subatomic particles, black holes and invisible phenomena, discover the most bizarre, mysterious and exotic things in our universe.

Low Earth Orbit, 120 miles above sea level, is where the majority of space exploration has occurred.

A variety of cosmic events have both helpful and harmful effects on life on Earth.