SOLAR SYSTEM

Detailed explanation-1: -It ensured spacecraft would avoid being pulled into the Sun. Scientists noted that muscles and bones would need physical stress to remain healthy during manned space flights.

Detailed explanation-2: -That means that without exercise, the astronauts’ bones would be more fragile and their muscles weaker after time spent in space. If astronauts didn’t exercise while they were in space, their bodies would experience major loss in: muscle mass. bone density.

Detailed explanation-3: -The only way to minimize muscle atrophy in space is through intensive exercise, particularly strength training exercises, combined with an adequate diet. Astronauts on the International Space Station spend 2 1/2 hours per day exercising to combat the effects of muscle atrophy.

Detailed explanation-4: -In the microgravity environment aboard the orbiting International Space Station, bones and muscles don’t have to support the body’s mass (weight on Earth). Without Earth-like exercise, astronauts would experience bone and muscle loss or atrophy during their stays in space.

Detailed explanation-5: -Astronauts should exercise for two or more hours a day, several days a week to minimize the effects of microgravity on bones. High-intensity resistance workouts have proven to be effective against bone loss, both in microgravity and on Earth.

Detailed explanation-6: -One solution to reduce the effects of microgravity on the human body is minimizing the time astronauts are exposed to microgravity. Chemical rockets have been used throughout human history, but an alternative approach is to use Nuclear Thermal Rockets (NTR).

Detailed explanation-7: -Without the proper diet and exercise routine, astronauts also lose muscle mass in microgravity faster than they would on Earth. Moreover, the fluids in the body shift upward to the head in microgravity, which may put pressure on the eyes and cause vision problems.