Earth.
i think not because astronouts dont go to space no more.
It is not have been prove yet, but scientists think there might be a chance of life in the planet Mars.
it is a hot planet we think it haves no life on the planet it has the biggest mountain on it
Actually not exactly... They think MARS can have life. They found WATER on mars, so, no, Earth might not be the only planet with life.
Scientists think this the only planet that can support life. It is because it has:1. Water2. Air3. It is within the "Goldilocks's" zone
mcdonalds astronouts monkeys
They are trained NASA scientists who explore space.
Yes but not as heavy as they were on Earth.
No, no one has travelled there.
Without it, there can be no life. I would think that's important.
it was either mars or earth i think it was mars
We do not know.Scientists think that mars had water, which can mean there was life,mabe.