Something that reaches the escape velocity of the body its coming up from.
your age
I think its an escalater The Answer to the first part of this question is Age, and hot air. The 2nd part would be anything ground-based as well as an escalator.
What goes up when rain comes down is an umbrella.
An arrow? A robbery?
a traveller on a donkey.
age
your age
rain
your age
your age
A waterfall
Age
Age.
rain goes down, but never goes up actually it evaporates is transformed to water vapor goes into the clouds and eventually comes down as rain again (pixilated)
dirt
Your age.
Your age!