079:13:57 Scott: And Houston. We're over Mare Crisium at the present time, and the sights are really striking. I guess some of the interesting things we've noticed is the variation in albedo from white to dark gray with many variations of gray in between. And many times, this albedo change appears without any significant change in topography, other than perhaps a - a mountain ridge or a chain or a wrinkle ridge or something, but there are many vari - variations in the albedo all over the surface. I guess our general consensus is that it's gray. We haven't noticed any brown yet.
Apollo 15 has just gone behind the Moon near the end of their second orbit. While out of contact with Earth, the only planned item is the Descent Orbit Insertion (DOI) burn. This audio is from that period.
083:15:41 Scott: Hello, Houston, Apollo 15. The Falcon is on its perch.
[Which is another way of saying that they believe they are in the correct orbit for the LM, Falcon, to fly off and do its stuff tomorrow.]
083:15:46 Henize: Good to hear you coming around that corner. How do things look?
083:15:53 Scott: Okay. Burn status report. Burn was on time. Burn time was about 24.0 - about half a second shorter than predicted. There was no trim; residuals were plus .6 [fps], plus .0, minus .1; Delta-Vc, minus 4.4, fuel 29 - 29.25 [percent of full]; and the oxidizer 29.55; unbalance, 100 increase.
083:16:34 Henize: Thank you, Dave. We copy all that.
Audio description of viewing the Littrow area from space by Al Worden. The audio clip on SoundCloud is a short edited excerpt; the full transcription is below.
128:12:46 Worden: Okay. I'm looking right down on Littrow now, and a very interesting thing. I see the whole area around Littrow, particularly - particularly in the area of Littrow where we've noticed the darker deposits, there are a whole series of small, almost irregular shaped cones, and they have a very distinct dark mantling just around those cones. It looks like a whole field of small cinder cones down there. And they look - well, I say - I say cinder cones, because they're somewhat irregular in shape. They're not all - they're not all round - they're positive features - and they have a very dark halo, which is mostly symmetric, but not always, around them individually.