The Jungle Surfer

, If the vacuum of space is not strong enough to strip away the molecules and atoms in upper atmosphere (where there is a weak gravitational attraction) then how is it possible that we are able to pick up objects using a vacuum through a straw at ground level (where there is a strong gravitational attraction). Also, liquid water will defy gravity by becoming a gas when a vacuum is introduced. The water in its gas phase then become suspended in the vessel, hence defying gravity. A gas in a balloon will expand to fill the vessel, if a vacuum is introduced. The gas particles defy gravity again. So, to conclude, gravity really doesn't exist.