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Radiation is a potential hazard of space flight.

On Earth, our atmosphere and magnetosphere help to protect life from solar & cosmic radiation,

When people travel above the atmosphere, or beyond the magnetosphere, they are exposed to high levels of radiation.

There are ways to protect astronauts and cosmonauts from radiation, but shielding is very heavy and for every pound of material placed into orbit, it cost several thousand dollars. So a balance has to be reached: cost/benefit.

Weightlessness for a short duration flight won't cause too many problems, but for long duration flights, weightlessness can cause a loss of bone mass and excessive atrophy (wasting) of many of the muscles.

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Why do you think space travel is dangerous?

Space travel is dangerous due to the extreme conditions of space, such as vacuum, radiation, and microgravity, which can have harmful effects on the human body. Additionally, technical malfunctions or errors during space missions can lead to accidents or equipment failures, posing risks to astronauts' safety. The unpredictable nature of space, including the presence of debris and potential collisions with other objects, also contributes to the dangers of space travel.


How persons can travel space in the space ship?

A space ship is completely different to our normal airplanes. Our normal ships have a certain height limit above which they can't travel because jet engines do not work properly unless there is enough air. Also, the aircraft are not designed to handle the low external pressure, which keeps decreasing as we move away from the earth.


Why was Laika sent up to space?

Laika, a Soviet space dog, was sent into space in 1957 as part of the Sputnik 2 mission to study the effects of space travel on living beings. She was one of the first animals to orbit Earth. The mission provided valuable data for future human space travel endeavors.


What are two limiting factors to space travel?

Two limiting factors to space travel are the high cost of building and launching spacecraft, as well as the long-term effects of space radiation on astronauts' health. Developing the necessary technology and infrastructure to support long-term human space travel is also a significant challenge.


What is harmful in space?

The main harmful aspects of space for humans include exposure to vacuum, extreme temperature fluctuations, solar radiation, and microgravity effects on the body. These conditions can pose risks to astronaut health and equipment. Additionally, the presence of space debris and cosmic radiation can also be hazardous.

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