What is the harmful effects of space travel?

Answer 1

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.

Answer 2

Harmful effects of space travel include exposure to radiation, muscle and bone loss due to microgravity, disrupted sleep patterns, and psychological stress from isolation and confinement. Long-duration space missions can also impact cardiovascular health and weaken the immune system.