0
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.
What else can I help you with?
What planet is an outside planet?
The five outer planets are the ones with bigger orbits than the Earth, which are Mars and the four giant planets. The outer planets can be seen at their brightest at midnight, when they are at opposition. That never happens for the inner planets Mercury and Venus.
What planets are death stars?
A planets and stars are different things, so a planet can never be a death star.
Do humans live in Neptune?
No. Humans have never been farther from Earth than the moon. Currently, barring a handful of astronauts on the International Space Station, all humans are on Earth. People could never live on Neptune. It has no solid surface and is far too cold.
What planets if any will appear to pass directly in front of the Sun from your earth based perspective which planets if any will never transit the sun?
Mercury and Venus are the only planets that can transit the Sun, from where I am.
When will man land on jupiter?
Probably never. Jupiter is known as a Gas Giant. There is no firm surface to land on. Only solid ground is so far down that the pressure would destroy anything we could currently build.
What planet is an outside planet?
The five outer planets are the ones with bigger orbits than the Earth, which are Mars and the four giant planets. The outer planets can be seen at their brightest at midnight, when they are at opposition. That never happens for the inner planets Mercury and Venus.
Which planet or planets have been visited by the astronauts?
The only planet astronauts have visited is earth. The moon, a satellite, has also been visited.
Are the planets going to disappear one million years from now?
Mostly probably not, but you never know.
How many planets are they in the hole Galaxy's?
Who knows. Probably billions of billions, but we will never know the total amount.
Where do astronauts go?
The only place astronauts have been other than Earth, is on the Moon. Between 1969 and 1972 there were 6 moon landings. Nobody has gone to the Moon since then and nobody has gone to any other planets yet. Most astronauts now just orbit the Earth on one of the Space Shuttles or on the International Space Station or one of the other spacecraft that some countries have. It will be a long time before it will be possible to send astronauts to other planets.
Why is Jupiter sometimes called a red giant?
It is never referred to as a red giant, but it might be because it has a giant red spot on it which is actually a large storm on the planet. But red giants are stars which have used up all the hydrogen so they start to expand and swallow up all the planets around it. )
Where is there an American flag which is never lowered never raised and never saluted?
On the moon, left by the astronauts.
Who were the astronauts that flew to the moon but never landed on it?
armstrong
What are all the biggest planets?
Planets compared to what? We will never know.
How many times have you been to the moon?
I have personally never been to the moon. But 12 lucky astronauts have been
Why do tigers eat giant pandas?
Probably because they have a lot of meat and they aren't as ferocious as other animals.
Do astronauts die when they travel to Mars?
We've never made it there, but no.
