Persuasive Essay On Space Probes

A space probe is an unmanned spacecraft designed to explore space and gather scientific information. A probe can be operated far away from earth and it may orbit or land on a planet. Most probes transmit data from space by radio. There are many probes out there because all are designed to study different environments. Unmanned probes are much better because they are not very expensive like manned spacecraft. Manned spaceflight is very expensive and dangerous. Humans require oxygen, food supplies and other equipment’s which increase the cost. NASA should send probes to Mars because probes are not vulnerable to any radiation in space and probes don’t need to wear suits or need oxygen. Unmanned space probes are able to collect more important and useful information which humans cannot collect. Another reason why space probes are better because humans …show more content…
Astronaut suits might tear in space and carbon dioxide can mix with oxygen which can kill astronauts. If humans go to Mars, then they have to come back, but not rovers, they can stay in space as long as they keep working without any issues. Manned space shuttle can explode if there is leakage or some electrical short-circuit or fuel can run out. Rovers have solar panels which give them enough power to keep them going. Weather in space can change at any time, it can change to stormy which will create problems for the space shuttle and astronauts. “Another risk for humans is the exposure to radiation during the trip, and even to some extent while on Mars. There are two kinds of radiation that are damaging to humans: High energy electromagnetic radiation, and particle radiation. Electromagnetic radiation includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma-rays” (Manned or Unmanned?). There is a lot of radiation, which is dangerous to