What are the simplest and most achievable methods for the human race to transform Mars back into a habitable planet?
Who created the big bang?
What is the biggest thing in the Universe?
What came before the Big Bang?
When did life begin?
If energy can’t be destroyed and can only be created or transferred, does the universe have a limit to the amount it Can hold?
Could the universe we inhabit be part of a larger a mind, simply the brain cell of another living creature?
Is the universe infinite?
How can we be guided by the stars?