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Why did NASA send two unmanned rover vehicles to investigate Mars instead of sending astronauts?
NASA sent rovers because only Hollywood can send a man/woman to Mars. The logistics in sending a manned flight to mars is ridiculous. Not to imply we wont someday get there but right now its not even remotely possible. here are a few basic reason.
1. a large craft is needed. Building a space station is one thing but building a large space craft is another.. you can't build it on earth because how would you get it into space and we cant build it in space because we don't have the facilities I.E fabrication ,assembly crew to do the work, crew quarters, air, food and so on.
2. a trip to mars takes 6-9 months a crew will need food, air and waste management for that time there and back. with no possibility of resupply and that all adds up to weight which is always an issue.
3. the crew will need a way to get to the surface stay for extended time and come back to the ship safely.
4. you also have to deal with solar radiation spikes space dust and micro meteors navigation communication planet side weather prediction and a whole host of other really complicated problems.
Hope this helped
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Why didn't NASA send astronauts to Mars instead of the unmanned 'Pathfinder' discovery mission?
Sending human beings to Mars is substantially more dangerous and expensive than sending an unmanned shuttle. It would take many days for astronauts to reach the red planet, and large quantities of supplies would need to be sent with them for them to survive the journey and to spend enough time on Mars to collect useful data and samples.
Have an astronauts visited mercury if so how and when?
Nobody has ever visited Mercury due to its highly inhospitable surface conditions. Temperatures can vary by as much as 600 degrees Kelvin. Surface conditions have been observed for many centuries using telescopes, both on Earth and from space. The surface is hard, rocky, and cratered in a way similar to the moon.
Why have no astronauts visited the gaseous planets?
The atmosphere of these planets is not suitable for human exploration. Gases and extreme pressure would instantaneously kill astronauts. Funding and the distance to the gaseous would also be reasons we have not visited Jupiter or Saturn.
Why is skepticism considered a valuable quality in a scientist-?
Skepticism is a valuable quality in a scientist because it makes them want to investigate things for themselves, instead of believing someone else. Skepticism leads to the overall growth of knowledge through investigation.
Have astronauts been on Saturn?
Pioneer 11 carried out the first flyby of Saturn in September 1979, when it passed within 20,000 km of the planet. This was followed by a visit of Voyager I (1980) and Cassini-Huygens space probe (2004).
Why didn't NASA send astronauts to Mars instead of the unmanned 'Pathfinder' discovery mission?
Sending human beings to Mars is substantially more dangerous and expensive than sending an unmanned shuttle. It would take many days for astronauts to reach the red planet, and large quantities of supplies would need to be sent with them for them to survive the journey and to spend enough time on Mars to collect useful data and samples.
What is unmanned space missions?
Unmanned space missions are space exploration missions that do not involve human astronauts on board. Instead, spacecraft are sent with robotic systems and instruments to gather data, conduct experiments, or explore celestial bodies. These missions are valuable for studying distant planets, asteroids, and cosmic phenomena without risking human lives.
Why do astronauts take measurement in centimeters instead of inches?
with cows
What is an unmanned mission?
An unmanned mission is a space mission where no humans are onboard the spacecraft. Instead, the spacecraft is controlled remotely from Earth or operates autonomously. Unmanned missions are commonly used for gathering scientific data, conducting experiments, or exploring space where it may be too dangerous for humans.
What other word can be used instead of research?
Analyze Consult Experiment Investigate Look into
Why have you sent probes instead of astronauts to explore the distant areas of the solar system?
Simpler and cheaper.
Why have sent probes instead of astronauts to explore the distant areas of the solar system?
Simpler and cheaper.
Are there any vehicles that don't require a timing belt?
Yes, vehicles that use a chain or gears instead of a belt.
What might the astronauts use to get up to light speed instead of engines?
Sails that are pushed by light is one concept.
What are vehicals?
vehicles are something that people use to get around instead of bike or feet
Why do you send out space probes insted of actual space flights with astronauts?
NASA occasionally sends out space probes instead of humans because astronauts could not survive on some of the places that space probes are sent to.
23 out of the first 26 astronauts were what?
Of the first 26 astronauts, 24 were test pilots. This was a requirement until Astronaut Group 3 was selected in 1963. Buzz Aldrin and Eugene Cernan were fighter pilots instead.
