Space

Did ‘Anti-Universe’ Exist Before The Big Bang?

A new theory says that Big Bang was a starting point of an anti-universe, a mirror image of the present universe.  In anti-universe, time flows in the opposite direction and antimatter dominates.  The Big Bang cosmology describes the history and...

13 Different Types of Stars In The Universe

Like almost anything in the universe, stars born, live their life and then die. They are also one of the most diverse things we know today. The most commonly used criteria of classifying stars is based on their spectral characteristics, in which...