Ever since humans first started to open their eyes some 200,000 years ago, we've looked up at the night sky and wondered what all was out there? As science and technology progressed we were able to learn more and more about the natural world beyond the Earth. So, the big question currently is how many habitable planets are out there?
Submitted by Prabir.Mehta on November 12, 2013
Submitted by Prabir.Mehta on May 16, 2013
What an amazing thing!! Walking on the moon. Happy Anniversary Buzz, Neil and Michael!