A spacecraft, traveling at a typical attainable speed of about 25,000 kilometers per hour, leaves Earth and travels toward the closest star system to Earth, the Alpha Centauri system. The time for journey would be about how many years?© BrainMass Inc. brainmass.com December 19, 2018, 7:43 pm ad1c9bdddf
The Alpha Centauri System is composed of 3 stars. The closest, Proxima Centauri, is about 4.2 light years away, but the system as a whole is 4.3 light ...
The time journey to Earth in a spacecraft is computed. How many years it would take is computed.