火星にはかつて原始的な生物が存在していたと彼は力説した。の英語

He contends that primitive life once existed on Mars.

It is said that there is no life on Mars.

There is no sign of life on Mars.

So, was there life on Mars?

Is there any life on Mars?

There's no life on Mars.

evidence of life on Mars

Just when the first human beings will reach Mars remains to be seen.

Is there life on Mars? If not, was it there before?

Is there life on Mars?

Mars is a dead planet.

How did Mars get so close?

Is there life on Mars?

Humans can't live on Mars.

From these discoveries, scientists have concluded that the environment on Mars was once capable of supporting life.

It will collect substances on Mars and examine them by itself.

Mars has long attracted the attention of people.

It is the first confirmation that water, essential for life, exists on a planet other than Earth.

I think I want to go to Mars.

This has created a great chance to study Mars.

Is there anything living on Mars?

The day will soon come when man can travel to Mars.

Will earthlings be ever able to live on Mars?

imaginary people who live on the planet Mars

Mars is a promising place where we may be able to live.

The day will soon come when man can travel to Mars.

It won't be long before we can travel to Mars.

The day will soon come when man can travel to Mars.

We may be able to grow crops on Mars.

Human beings succeeded in flying into space.