20 year anniversary of a little blue speck

Last week marked the 20th anniversary of a photograph.
It’s a very dramatic photo, even though, at first glance,
it’s mostly dark and seems to show nothing at all.
But if you look closely, you can see a tiny speck of light.
That speck is the Earth, seen from very, very, very
far away.
Read on.
kf6hqc