we dont know if there is another eath with people an cities and all that but with millions of galaxies out there there is planets with life on them for sure space scientists are working on building a space ship that can travel to other galaxies and will find life on other planents and there will be more earths in centuries to come
Differentiation occurred in other inner planets, besides Earth.
Liquid water. All else is incidental.
People want to explore other planets to expand our understanding of the universe, to discover if life exists beyond Earth, and to potentially find resources that could benefit humanity in the future. Exploration of other planets also allows us to push the boundaries of science and technology.
As of now, a total of 12 astronauts have walked on the surface of various planets in our solar system. These missions include the Apollo moon landings and Mars rover missions. There are plans for future manned missions to Mars and potentially other planets as well.
No, humans have not landed on any planets besides Earth. The main reason is the extreme distances and conditions of other planets in our solar system, such as harsh temperatures, lack of breathable atmosphere, and intense radiation. Sending manned missions to other planets would require significant advancements in technology and resources.
none
Differentiation occurred in other inner planets, besides Earth.
Yes. Besides earth there are seven other major planets and 5 recognised dwarf planets.
Yes.
mars
no because there is no oxogen in space
We don't know about any other other place, besides Earth, that harbors life. But many scientists think that there is life on other planets.
Well yes, Mars, Juipiter, Neptune are some examples of other planets besides earth
Yes. A moon (or natural satellite) do revolve around other planets besides Earth. The only two planets without moons revolving around them are Mercury and Venus.
The only planet other than Earth on which a human could walk safely (with a spacesuit of course) would be Mars, but we currently do not have any spacecraft capable of sending people there. The planets of the outer solar system lack solid surfaces while Venus and Mercury are too hot.
Some people believe that spaceships from other planets have visited Earth, but no one has ever been able to prove it.
1). Halley's Comet 2). Earth's moon