interstellar communication
Signals between stars
Interstellar communication is the transmission of signals or messages across the vast distances between star systems.
The concept appears mainly in discussions of extraterrestrial intelligence—whether alien civilizations might be sending signals, or whether humanity should broadcast its own: SETI researchers scan radio frequencies for signs of interstellar communication.
The immense distances involved mean any exchange would take years or centuries.
- binary codeTwo-symbol numeral system
- radio telescopesInstruments detecting celestial emissions
- speed of lightMaximum possible velocity
- pictogramsImages conveying meaning
- electromagnetic wavesSelf-propagating field oscillations
prime numbers · astrobiology · alien civilizations · golden record · energy consumption · message in a bottle · alien language · Doppler effect · redshift · deep space network · relativity theory · Drake equation · quantum entanglement · existential risk · SETI · data compression · cultural exchange · quantum mechanics
interstellar communicationFermi paradox
Why no extraterrestrials yet?
radio silence · isolation · no contact · communication blackout · solitude
inter, stellar, communication, star, stars, starred, starring, starry, stardom