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This is because sending men up into space costs a lot more money than sending probes or other unmanned space craft. When you send a crew of people up you need to provide their living space, food, air, etc so they can survive. Holding all that would make the ship larger and cost more than a smaller unmanned ship. Also unmanned crafts can travel longer distances. No human wants to go on a 10 year journey where they might end up killed, these droids can do this for them.
What else can I help you with?
What do the space shuttles Columbia and Voyager have in common?
They were both launched into space by NASA. It should be noted that Voyager was NOT a space shuttle, but rather an unmanned deep space probe.
What are the names of some Russian space shuttles?
they only built one and it only made one unmanned flight, then they retired it reason unknown.
Why aren't space shuttles a space probe?
A space probe is an unmanned device that is sent into space for purposes of exploration. The space shuttle is a manned vehicle meant for research and delivering supplies, equipment, and people into low-Earth orbit.
What is one thing that has been accomplished from the knowledge gained through astronauts' research and space explorations?
not a discovery for AIDS
What is the Difference between space-shuttle space -probe spacecraft?
A space shuttle is a reusable spacecraft designed for human spaceflight, carrying astronauts to and from space. A space probe is an unmanned spacecraft designed to explore other planets, moons, or asteroids without carrying humans. Spacecraft is a general term that encompasses both manned (space shuttles) and unmanned (space probes) vehicles designed for space exploration.
What are the names of space shuttles being built?
NASA space shuttles
What energy is made from space shuttles?
Space shuttles use energy, not make it
How many launches were there in the space shuttle?
all 135 space shuttles were launched at Kennedy Space Center beetween 1981 to 2011
Why is most space exploration accomplished with spacecraft without astronauts?
The most obvious answer to your question is the fact that people have to return to earth, while an unmanned craft can stay in space infinitely. Manned spacecraft require things like oxygen, water, food and communications equipment, none of which are required by an unmanned spacecraft. That means unmanned spacecrafts can be sent into space for a fraction of the cost of a manned spacecraft. So basically, it's much cheaper and safer to send unmanned spacecrafts to explore the universe.
How do shuttles and stations get into space?
Stations are built in space; Shuttles use rocket boosters.
Where does the Canadian Space Agency launch shuttles from?
no place, nobody has space shuttles anymore
Are the Space Shuttles going to fly again?
It is not expected that the Space Shuttles will fly again.
