The noun form for the adjective zealous is zealousness.   The word zealous is the adjective form of the noun zeal.   Related noun forms are zealot and zealotry. 1 person found this useful.
Gravity on Jupiter: Jupiter is the largest and most massive planet in the Solar System. Its mean radius, at 69,911 Â± 6 km, makes it 10.97 the times the size of Earth, while its mass (1.8986Ã1027 kg) is the equivalent of 317.8 Earths.
Gravity in low Earth orbit is almost as strong as gravity on the surface. The Space Station hasn't escaped Earth's gravity at all; it's experiencing about 90% the pull that we feel on the surface. To avoid falling back into the atmosphere, you have to go sideways really, really fast.