Earth Day Greetings from the Blue Marble

Blue Marble

by B. N. Sullivan

Behold, our favorite image of  Earth --  the 'Blue Marble'.  This now-famous photograph was taken on December 7, 1972 by the astronauts of Apollo 17, which was the last manned mission to the moon.  The photograph, listed in the Apollo 17 Image Library as AS17-148-22727, is described this way:
A Full Earth from the Apollo 17 Command Module at about 5 hours 6 minutes, shortly after separation of the docked CSM-LM from the S-IVB at 4 hours 45 minutes. Note that the trajectory is far enough south that Antarctica is visible.
That simple description belies the stunning impact of this iconic image.  If anything can remind us of the interconnectedness -- the oneness -- of the Earth's seas, land masses, and atmosphere, the evocative imagery of the Blue Marble  is it!

This Earth Day, regardless of what else you do, we encourage each of you to pause and reflect on the Blue Marble. That's our home --  the only one we'll ever know.  Each of us individually, and all of us together, must do whatever we can to look after it.


  1. I remember this photograph. Notice how blue and clear everything looks. It doesn't look this beautiful any more. So sad, really.

  2. I don't think it's too late for us to change things!

  3. Wow now isn't that a fantastic view of the earth. It makes me feel small somehow, majestic!

  4. You folks posting anything with regards to the Gulf oil spill?

  5. Scienceguy288- thanks for asking-check out my twitter feed @therightblue...I post links and comments about the Gulf Oil disaster all day long....thanks jerry


We welcome your comments and invite your questions. Dialogue is a good thing!

Bobbie & Jerry