Space is Colder Than We Hoped ⚡ экспресс
Ask a frying pan: after cooking, there's always residual heat. Astronomers 'scanned' thousands of galaxies in infrared rays, searching for extraterrestrial intelligence by excess heat. They found that if anyone is turning entire stars into heaters, they're almost invisible. Space is suspiciously cold.
🎯 The temperature of 300 Kelvin they were looking for is a comfortable 27°C. Remarkably, the human body radiates about as much heat as a 100-watt light bulb. From a galactic civilization, however, they expected a glow hundreds of trillions of times more powerful.
🎬 The search for engineering structures of alien races is a popular sci-fi plot. For example, in Ivan Efremov's novel 'Andromeda Nebula', the characters find a vanished civilization by its residual radiation.