Scientists Estimate 20 Billion Earth-Like Planets In Our...
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Understanding the size of Earth in comparison to the rest of our solar system.
NASA - Hubble Views the Star That Changed the Universe
Brian Greene: Is our universe the only universe?
TED Talks Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just...
Best Eclipse Photo Ever!
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Last updated: 5th July 2012