Though the concept is still fully theoretical, NASA's pellet-beam propulsion could shorten interstellar space travel to five years or so. Read to learn more.
NASA's Voyager 1 was launched almost 45 years ago, and has achieved more than anyone was expecting. Now, as it travels outside of our solar system, data that is being sent back has left its engineers puzzled.
NASA's Voyager 1 was launched almost 45 years ago, and has achieved more than anyone was expecting. Now, as it travels outside of our solar system, data that is being sent back has left its engineers puzzled.