Context:
As if that weren’t enough for the red planet, both
India and the
United States launched Mars orbiters in November. And by December, China became only the third country ever to
send a rover to the Moon.
NASA’s Voyager spacecraft
left them all in the dust. After a journey of 36 years and 19 billion kilometres, the Voyager 1 probe
finally crossed the boundary into interstellar space. The actual transition took place in August 2012, but not until this year were project scientists confident enough to announce the final exit into the void between the stars.
Next stop for Voyager 1: drifting past a star in the constellation Camelopardalis, about 40,000 years from now.