Table of Contents
What are the difficulties challenges of getting into space?
Exploration missions that leave the Earth’s protective sphere, however, will have to overcome many challenges, from conditions in space such as cosmic radiation and hazardous environments to human-specific conditions such as space adaptation syndrome (motion sickness), spatial memory, visual motor performance, bone …
Why is it incorrect to say that astronauts are weightless?
(A) An astronaut standing on Earth does not feel weightless because the ground creates a normal force that opposes the force of gravity. However, since the astronaut is also moving forward super fast, he/she continuously falls around the Earth rather than crashing into the Earth.
Why is it incorrect to say that astronauts are weightless in space while orbiting Earth in a space shuttle?
Why is it incorrect to say the Astronauts are weight-less in space while orbiting Earth in space in a space shuttle? A: It is correct to say they are weightless. A gravitational field doesn’t by itself make any of the effects of weight.
Is it possible to be weightless in space?
Astronauts aboard are weightless because their space ship is falling freely. Its rocket engines are turned off and nothing is holding it up. Could an astronaut step out of the International Space Station (ISS) and fall to Earth like Baumgartner did from his balloon capsule? The answer is no, that wouldn’t work.
How tall does the Space Shuttle have to be to be weightless?
The usual destination of the Space Shuttle is the International Space Station. The space station orbits the Earth at height of about 200 miles (350 km) at a speed of about 17,000 MPH (28,000 km/hr), taking about one and a half hours per orbit around Earth. Astronauts aboard are weightless because their space ship is falling freely.
Why are astronauts in orbit around the Earth weightless?
Earth-orbiting astronauts are weightless for the same reasons that riders of a free-falling amusement park ride or a free-falling elevator are weightless. They are weightless because there is no external contact force pushing or pulling upon their body.
Is the International Space Station an example of weightlessness?
Astronauts on the International Space Station experience only microgravity and thus display an example of weightlessness. Michael Foale can be seen exercising in the foreground.