New projects broaden the search for alien signals from space | Astronomy.com
Sound – wave interference — Science Learning Hub
Are aliens watching old TV shows?
METI's First Message Is a Music Lesson for Aliens | WIRED
Another mysterious deep space radio burst is sending signals to Earth every 157 days, study finds - CBS News
Scientists searching for aliens tracking 'unusual' radio wave from sun's closest star | TheHill
Confirmed: In space no one can hear you scream | Brunel University London
Tuning In Space Noise For Sounds Of Life : NPR
Will SETI 2.0 lead to a discovery of intelligent aliens? | Space | EarthSky
The Ionosphere
The Search for Extraterrestrial Intelligence - and How You Can Help! | Let's Talk Science
Electromagnetic radiation - Radio waves | Britannica
Has Mysterious Signal From Space Finally Been Explained?
Interesting fact of the month | NASA
Astronomers Can't Hear Signals From Space Because Earth Is Too Loud - WSJ
Scientists looking for aliens investigate radio beam 'from nearby star' | Space | The Guardian
The Electromagnetic Spectrum | Physics
Skywave - Wikipedia
Did Ancient Aliens Send Us Messages Every 16 Days? Either Way It's Time To Listen In Our Own Galaxy
Enter The Quiet Zone: Where Cell Service, Wi-Fi Are Banned : All Tech Considered : NPR
What are the Van Allen radiation belts?
Electromagnetic waves and the electromagnetic spectrum (video) | Khan Academy
A $100 Million Message From Aliens Next-Door? What We Know About The Mysterious 'BLC1' Radio Signal
Alien Hunters Discover Mysterious Signal from Proxima Centauri - Scientific American
Pictures Show Life Inside the National Radio Quiet Zone
