RT @elakdawalla: Wow, Voyager 1 achieved a heliocentric distance of 2 x 10^10 km from the Sun today. unmannedspaceflight.com/index.php?show… https://t.co/GPl6AVjjWw
RT @elakdawalla: Wow, Voyager 1 achieved a heliocentric distance of 2 x 10^10 km from the Sun today. unmannedspaceflight.com/index.php?show… https://t.co/GPl6AVjjWw