The Universe

We are in the midst of the greatest era of space discovery. 21st century spacecraft and sophisticated imaging technology are venturing into un-chartered territory every day.

In the last few years, the Red Planet has yielded up many new clues that life may have once existed there...and may even exist there today.

It bursts from the sun with the power of ten thousand nuclear weapons... and when it hits our planet, it could create the largest disaster in recorded history.

One of the Universe's most enduring mysteries is time travel. In this episode, we explore the possibilities. Discover why time travel into the future is unavoidable in the world of Relativity.

They've discovered water on other planets, and snatched the actual building blocks of life from a comet's tail. But can space probes find a new Earth.

What are the latest discoveries in the deadly world of asteroids? Learning about these huge space rocks isn't just about science, it's about survival.

Once they were dreaded and thought to be dragons eating the sun--but modern science has dispelled mythology and we now look forward to total Solar Eclipses.

Our Sun has served Earth well for almost five billion years. It's bathed us with heat and energy. But like humans, our home star is mortal. In five billion years.