Today is the fortieth anniversary of Earthrise, the first time it had been seen by human - or, frankly, anyone else's - eyes. The photo was taken by the astronauts of Apollo 8 on Christmas Eve 1968 as they orbited the moon. Before that there had been a few pictures of Earthrise taken from satellites, but this was the first time anyone had actually been in a position to see it directly.
So, forty years later, on Christmas Eve 2008, let's remind ourselves of the picture that reminded people just how small our home is in the vastness of space.

BBC article here.
So, forty years later, on Christmas Eve 2008, let's remind ourselves of the picture that reminded people just how small our home is in the vastness of space.

BBC article here.