As of December 2018, how many man made objects have left the Solar System?
Correct answer: Four
try2keepupslowy
please let me know if someone outside of NASA gets this right!
Frederick Dorrian
try2keepupslowy, who cares. all that money spent and for what. we gain nothing for the earth and life on it
Republic of China
try2keepupslowy,
Do you know you can guess?
Player #48458
jackgoosey, if the trip out I.n space takes that long we will not be around to find out. the results
GregariousCanary6983
not knowing
Gspot
try2keepupslowy, I got it right and i don't work for nasa
jackgoosey
this was tough