The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around.

Other Related Links:

• 10 Outclass Gadgets in 2011
• Top 10 Genius Brains Behind The Google
• World’s Top 10 Popular Dating Websites
• 10 Famous Web Browsers Around The World

Gödel’s incompleteness theorems

Antimatter Retrocausality

Cosmic Strings

Quantum Tunneling

Kerr Black Hole

Geon

Black Strings

Relativity of Simultaneity

Frame Dragging

Negative Energy

(source)