NASA - Not Enough Fuel for Deep Space Missions

(Forbes) - As 2018 comes to a close NASA scientists are celebrating a milestone: for only the second time in human history an operational spacecraft is leaving the Solar System. Voyager 2 joins its twin Voyager 1 as the only two human-made objects to pass beyond the heliopause and enter whats commonly defined as interstellar space. Despite being over 40 years old and despite being farther away than any other spacecraft ever we are still receiving signals from these deep space missions. Read More