A: The main threats to human health and performance associated with space flight are radiation, altered gravity fields, hostile and closed environments, distance from Earth, and isolation and confinement. Deep space missions are limited in terms of the amount of energy available for radio communication to and from Earth. Because spaceships travel so far from the Sun, they cannot generate as much energy from solar panels as terrestrial satellites. The radio signals they transmit are very weak and must be detected among the background noise.
It can take hours for signals to reach Earth. Therefore, a browser cannot expect a quick response. Space is, of course, infinitely more hostile to human life than the surface of the sea; escaping Earth's gravity involves much more work and expense than leaving the coast. ISS astronauts exercise to combat muscle wasting and bone loss, but they still lose bone mass in space, and those zero-g spin cycles don't help solve other problems.
In addition to harming astronauts' lung health, space dust also wreaks haVOC on equipment and ventilation systems, which are also necessary to survive in space. For future missions, deep space navigation expert Joseph Guinn wants to design an autonomous system that collects images of nearby targets and objects and uses their relative location to triangulate the coordinates of a spaceship without the need for ground control. Dust can test the ability to establish this permanent settlement, and the key to survival will be paying special attention to lung health both on Mars and in space. As it gets easier to send more mass into space, designers could become more ambitious, but they won't have to reinvent the wheel.
As they discovered, beyond the zero gravity effect, planetary dust attaches itself to astronauts through static electricity, has sharp edges and follows them back to their spaceships, increasing the chances of dust entering their lungs and causing damage. The Deep Space Network, a set of antenna arrays in California, Australia and Spain, is the only navigation tool for space. If the Earth were the size of a softball, the International Space Station would be orbiting just above the veins, the Moon would be a marble about 2 meters (7 feet) away and Mars would be between 1.2 and 2.4 kilometers (. Star Wars wants you to believe that the biggest challenges of space travel are asteroids, the lack of resources such as water or fuel, or even the threat of intelligent and hostile alien life.
An ultra-precise atomic clock on Earth multiplies the time it takes for a signal to reach a spaceship from the network and vice versa, and navigators use it to determine the ship's position. However, for deep space missions, the navigator must also take into account the gravitational forces of planets and moons and other forces that could affect the trajectory. The United States Space Surveillance Network is monitoring 17,000 objects, each at least the size of a softball, which revolves around the Earth at speeds of more than 17,500 miles per hour; if you count pieces smaller than 10 centimeters, they approach 500,000 objects. But you're running through frictionless space at, say, 200,000 miles per hour (assuming you've broken the merger).
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