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We can set foot on all the planets in the solar system including the terrestrial planets, except for gas giants, which are Jupiter and Saturn. We can't set foot on Jupiter and Saturn because there's no solid surface and it's so gaseous. Uranus and Neptune are also a gas giant but they're considered an ice giant, so there's a solid surface in these 2 ice giants.

We can set foot in all planets except for Jupiter and Saturn.

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What planets will mankind never be able to set foot on?

In this lifetime - all of them. Probably in this decade, none. Within this century, Mars is the most probable. Time is an incredibly long period and technology increases even faster. It is not inconceivable for Man to set foot on Mercury, Venus, Mars and even the dwarf planets and many of the moons. However, they will never be able to "set foot" on Jupiter, Saturn, Uranus nor Neptune because by definition there is no surface to "set foot" on. Float maybe, but not "set foot".


Has a man set foot on any planet besides earth?

No, in recent history no human has set foot on any planet other than earth !


Why will astronauts probably never set foot on any of the giant planets?

I am not sure how probable this is; but here are some of the practical difficulties.The gian planets don't really have any surface where anybody can "set foot on". They are just gas giants; the gas goes way down. An astronaut might be able to set foot on a platform floating in the planet's atmosphere, but not on the planet's surface, since these gas giants have no surface.The gravity of these planets is very strong. On Jupiter, an astronaut would have trouble standing up, since his weight would be more than twice what he weighs on Earth. On Saturn, an astronaut would weigh even less than on Earth - but it would require a tremendous amount of energy to get such an astronaut back out from Saturn. Or any of the giant planets. Look up the "escape velocities" - squaring these velocities gives you an idea of the amount of energy required. For example, on Earth the escape velocity is 11.2 km/second - and escaping from Earth is already a considerable engineering challenge. Saturn's escape velocity is 35.5 km/second - meaning that in theory, it would take about ten times as much energy to escape from Saturn, than it takes to escape from Earth.


American astronauts first set foot on the moon in?

July 1969


WHAT IS THE STANDARD HEIGHT FOR SWITCH?

For a light switch in the home four foot to centre is a reasonable height. Some contractors set the outlet box at four foot to the bottom of the outlet box and other contractors set the box to four foot to the top of the outlet box. There is no code rule that stipulates the exact height that the outlet box must be set to.