Examining the 1959 Russian space probe photos that finally showed humanity the dark side of the moon was; a look at three competing theories seeking to explain the vast differences between the faces of Earth's lonely satellite.

Investigating the havoc that solar explosions might wreak on the planet, which release as much energy as millions of nuclear bombs, causing blackouts and satellite malfunctions that could leave Earth in the dark.

How a space telescope, Hipparcos, made a shocking discovery in 1989 about the Methuselah star that sent scientists back to the drawing board to rethink the age of the universe.

A look at an archaeological mystery hidden in Tutankhamun's famous tomb; examining 12 knives buried alongside Egypt's boy king that seem to be made from a type of iron forged in space.

Peek inside a Mars meteorite that rocked the scientific world in 1996; explore the controversy that ensued after traces of fossils were allegedly found inside and learn how this discovery rekindled interest in the Red Planet's potential for life.

Unraveling the mystery of antimatter and why it should have destroyed the universe before it even began; revisiting the Big Bang with scientists trying to understand the presence of life on Earth and possibly on other planets in the galaxy.