There IS Gravity In Space


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astronaut.jpg     The famous myth of there being no gravity in space is definitely understandable.  However, you have all been fooled.  We see a lot of pictures and video footage of astronauts floating in their aircraft after reaching a certain point of space.  
       "Zero gravity" is an incorrect term.  The term was created by scientists describing a time or place of no present force of gravity on a body.  This is because either a force in the area is weak or because the area around the body is free and equally exerting the force. 
      According to dictionary.reference.com gravity is the force of attraction by which terrestrial bodies fall towards the center of the earth.  Isaac Newton justified that as an object gets further away from something, its gravitational force decreases, but never vanishes. An example of this is, the suns gravitational pull is stronger on the planet Mercury than it is on Earth or any of the other planets because Mercury is the closest planet to the sun.  
      The question remains why does it seem like the astronauts are floating in space if there IS in fact gravity?  This is because when any volume is in space, it is in perpetual free fall.  "If there was no gravity in space, weather and all communication satellites would not orbit the Earth, Earth would not orbit the sun, and the sun would not orbit the center of the Milky Way. Everything in space would be in a straight line and and it would be chaotic" (Bakich). 
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source: http://www.ajdesigner.com/phpgravity/newtons_law_gravity_equation_force.php    
   I went on the ride in Disney World "Tower of Terror". The elevator ride drops so fast that you feel like you are flying out of your seat. If you were not in a seatbelt or even your carry on items are not secured or being held, odds are you or these items will go flying up in the air.  
site used : http://www.astronomy.com/News-Observing/Astronomy%20Myths/2009/11/Theres%20no%20gravity%20in%20space.aspx
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1 Comment

This is really interesting! I've always heard of the term "zero gravity" and never thought about it much. Its so cool to think that if it really were zero gravity, nothing would orbit the earth. Everything we have learned in school would be wrong! It is amazing to think that there is gravity everywhere and it controls our whole universe! Solid article! Thanks!

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