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Q: How much space travel had been done by1939?
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How do they travel to space?

Space travel is done by means of rockets.


What are astronouts?

Astronauts are people who travel in space.


Why is there space travel and space stations?

Because people have a desire to travel in space and live in space. Science also has a reason to be in space. Many experiment are done in space and the moon landings were an attempt to find out more about the places and things, which are possibly outside of Earth.


Did Robert goddard make space travel possible?

Goddard was the first to develop technologies -- liquid fuel and two-stage rockets, for instance -- that would be necessary for space travel. However, these technologies would have been developed by others even if Goddard hadn't done so. German scientists, for example, developed these with no knowledge of what Goddard had done.


What has exploration of space beyond the moon has been done by?

Space probes with no human crew.


Exploration of space beyond the moon has been done by?

space probes with no human crew


The exploration of space beyond the moon has been done by what?

Robots.


What are some experiments that are done on the space station?

Many different experiments are done on the space station. There have been experiments done on Salmonella; Tethered Satellite System; seeing if a rose smelled different in space; building protein crystals; building films or materials in space; and studying nematodes in space.


Can you make a time machine traveling in space?

So far, it hasn't been done yet.


What year would you hope to send people into space who are not astronauts?

I do believe that it has already been done.


Can a car travel faster than sound?

I believe this has been done on the Bonneville salt flats. Google it.


What must be done if oxygen deficiency occurs?

entrants must stop and immediately exit confined space. If confined space has been ventilated, air in space must be monitored again before worker entry into the space.