Looking for Aliens with mathematical equations; Spectroscopic imaging — the process of splitting the light up from a planet or any star and trying to identify what gases are present by what they ( aliens life that is ) have removed or added to the light. Just like on Earth where we have satellites that look down to measure gas concentrations, we can use space telescopes to look at the atmospheres of planets far away. We’re going to look for gases that essentially don’t belong — gases that may be produced by life. Example of oxygen on Earth. “Oxygen fills our atmosphere to 20% by volume. But without life we actually wouldn’t have oxygen at all — we’d have about 10 billion times less oxygen,” . “So plants and photosynthetic bacteria are creating oxygen in our atmosphere, and so, if aliens were to look at us from far away, and using optical wavelength telescopes — rather than radio telescopes — they would see all this excess oxygen and they would hopefully know that that it doesn’t belong here — that it should be attributed to life.”
Posted on: Sat, 29 Jun 2013 20:56:29 +0000
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