takes 26 months.

can only be made once every nine months.

can only be made when the planets are aligned.

It's not possible to find life on Mars.

Some people will probably die trying to get to Mars.

At present, taking humans to Mars is too expensive.

it's easier to go today.

we are convinced we will find life.

the presence of life is a possibility

Their air.

Their surface.

Their seasons.

 wants to send humans to Mars in 2024.

will send humans to Mars within the next two decades.

is working with NASA to send people to Mars.

saw Mars as the next destination.

thought going to Mars was impossible.

tried to go to Mars.

how to use social media

how to create their own business

how to advertise their a product

she can be on TV

she can do what she wants

she can be an inventor

wants to improve 3D printing

wants to use a 3D printer to create a new product

has plans to go somewhere

likes zoos

wants to be a zoologist in the future

has animals at home