“What do we have, MIRV?”

  “This P [planet] has two A [atmospheres]. One gaseous state, the outermost one, is formed by Nitrogen and Oxygen, and another is in a Liquid state, composed of Hydrogen and also O [oxygen]. The latter is in direct contact with the crust, although it does not completely cover it. The signals come precisely from that part, the part free of liquid A [atmosphere].”

  “From there? Is it not coming from the interior of P [the planet]?”

  “Under S’ [the surface]? No. The signals are emitted at the surface level.”

  “It can’t be. How can Beings exist surrounded by O [oxygen]? Their circuits would oxidise.”

  “Unless they use non-oxidizable M [metals], like copper.”

  “Do you detect anything?”

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  “There are hardly any M [metals]. The entire S’ [surface] is rocky but covered with huge amounts of Carbon.”

  “C [carbon] on S’ [the surface]?”

  “Yes, here you can see the infrared signal.”

  SAIR-Spda looked at the signal record and said:

  “I see. They are structures covering the crust. They reflect the spectrum of light at a wavelength of about 550 nanometres.”

  “What is commonly called ‘green’.”

  “Green... A planet with A [an atmosphere] of liquid W [water] and therefore, a poor conductor, and with large amounts of green C [carbon] structures on S’ [the surface] not occupied by A [that atmosphere].”

  “And no trace of M [metals], at least in large quantities.”

  SAIR considered the findings and then said:

  “Well, we’ll have to go down further and look for something ‘that moves’.”