What will happen if we push a rubber sucker on a smooth surface in the outer space?
Please find below the solution of your asked query:
When we press a sucker on a smooth surface we remove some of the air between the sucker and the smooth surface. This deficiency of air lets the air outside exert pressure on the surface of the sucker and the surface so as to refill the air expelled. Force due to the pressure keeps the sucker stuck to the surface. Now, as there is no air present in outer space, therefore, no will be exerted by the air pressure and the sucker won't get stuck onto the smooth surface.
Hope this information clears your doubts about the topic.