Voyager 1 has traveled 1 light day

[Debi]

Man-made object to become first in history to travel a single light-day

Traveling light-years remains the stuff of science-fiction, but traveling one light-day is about to become a reality.

www.unexplained-mysteries.com

 

[7Critter]

it is hard to grasp how big the solar system and the universe are.