Fascinating questions that continue to perplex astronomers...

The biggest animals to ever roam the Earth...

Have a look behind the secret door...

Meet Mother Nature's ten real life Pokémon with real super powers...

The most mysterious places in the known Universe, get ready for a mind-blowing space trip... REVISITED!

The 10 most important steps in the formation of Earth as we know it, including formation of the Solar System and the solar nebula hypothesis; the Theia impact and birth of the moon; the origin of the first continents, oceans and atmosphere's greenhouse gases; meteor showers and the origin of life; Pangaea and the Cambrian explosion; the reign and extinction of the dinosaurs through a large asteroid impact; and the rise of human civilization.

Powerful civilizations that slowly faded into obscurity...

Ten UFO sightings that will leave your jaw dropping...

The future is almost here, and about to revolutionize Mankind...

Ten bizarre and mysterious lifeforms that baffle scientists…

Ten forgotten dead people you will never forget again…

Welcome to the Universe's most explosive show!

Ten more unexplained photos you will never forget...

Epic journey to the most remote places hiding at edge of the world...

What a strange creature you are!

Time for Humanity to discover what's outside its backyard...