For an astronaut orbiting the Earth, the temperature can change abruptly in a matter of seconds, depending on whether he is facing the Sun or protected by the shadow of our planet . In the latter case, the temperature can reach -180º C. Now, if the astronaut is facing the star king, the heat becomes unbearable, reaching 122 ºC . In the universe, the absolute temperature of the cosmic background radiation is -266.15 ºC.
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