From a distance, our galaxy would look like a flat spiral, some 100,000 light years across, with pockets of gas, clouds of dust, and about 400 billion stars rotating around the galaxys center. Thick dust and blinding starlight have long obscured our vision into the mysterious inner regions of the galactic center. And yet, the clues have been piling up, that something important, something strange is going on in there. Astronomers tracking stars in the center of the galaxy have found the best proof to date that black holes exist. Now, they are shooting for the first direct image of a black hole.

A presentation of the facts and theory surrounding the astronomical phenomenon of black holes, using the latest in computer-generated imagery. Theories regarding their origin are presented, along with speculation about what lies with and beyond them.

Planets, moons and stars can all face violent upheaval at any moment. Is it possible to predict when Mother Nature will strike?

Without the moon, humans wouldn’t exist. Life, if it had started at all, would be in the earliest stages of evolution. Days would last four hours, winds would blow at hurricane force and there would be a dense and toxic atmosphere resembling that of Venus. Luckily, 50 million years after the formation of the solar system, our proto-planet was hit by a celestial body more than twice the size of Mars, which formed the moon.

In this one-hour special, we learn what Earth was like before the moon and what life would be like if the moon disappeared.