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Space science encompasses all of the scientific disciplines that involve space exploration and study natural phenomena and physical bodies occurring in outer space, such as space medicine and astrobiology.
Space science makes us look outwards from our planet, to the stars and beyond. It’s a subject that strives to answer the ultimate questions : How did our Earth and our Solar System form and evolve? What is our place in the Universe ? Where are we going ? Where did life come from, and are we alone here ?
The two major fields of Space Science :
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Astronomy : See astronomical object for a list of specific types of entities which scientists study. See Earth's location in the universe for an orientation.
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Astronautics : Science and engineering of spacefaring and spaceflight, a subset of Aerospace engineering (which includes atmospheric flight).
- How did the Universe begin ?
It all began 13.8 billion years ago. The entire universe which spreads billions of light years today, was once a size of electron which exploded to about it's current size within a fraction of second. This came to be famously known as The Big Bang. Even the time did not exist before the big bang. English astronomer Fred Hoyle first coined the term "Big Bang". A Belgian priest George Lemaitre first suggested the Big bang theory in the 1920s.
Learn about Space science in detail :
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