The invention of the rocket has sometimes had negative effects on human society. For example, these devices have been used in warfare. consequently people have sometimes been killed en masse. Rocket technology has improved with time, so rocket engines have come to possess greater range. Conceivably, deadly "warheads" can therefore be sent to reach targets far away from the launch site. Recently, as a result the development of nuclear power, a rocket with a nuclear warhead can be the result of the deaths of millions of people in a few moments. Tens of millions more can possibly die due to the spread of radioactive fallout from a single explosion.
On the other hand, the invention of the rocket has also had amazing benefits for human life. For instance, weather satellites carried into space by rockets can warn people about bad weather. Many lives threatened by storm can as a consequence be saved. As another example, rockets can carry robot probes into space. People can explore not only the Earth but also other planets in the solar system as a result such capability. Moreover, because of this people can learn more about their collective place in the Universe. Finally, rockets can carry communications satellites into orbit. Millions of people from all over the world are since able to talk to one another, engage in business, join in scientific research, and do countless other useful activities together. In short, due to the rocket and communications satellites, the world has almost become one country.