Today, the United States must keep an eye on countries like India, North Korea, Iran and other nations that may have developed the ability to launch long-range nuclear missiles. In order to combat a potential nuclear attack, the United States has been developing a space-based missile defense system for the past two decades. This defense system began under former U.S. President Ronald Reagan. There is now even talk of the United States developing a fifth military branch, perhaps called Space Force, that would pick up where the Air Force leaves off. Inc. All rights reserved.
Meteors burn up when they hit the earth's atmosphere.