Back in June we told you about a very cool experiment National Geographic was doing along with the Arecibo Observatory, where they wanted to send your messages via Twitter out to space in response to The Wow! Signal on its 35th anniversary.

As of August 15th, the exact anniversary of first receiving the signal, all messages—including over 20,000 tweets and a few videos from celebrities—were officially beamed out to space for whatever intelligent lifeforms that may be out there to hopefully one day pick up on.

Continue below to check out a cool video (featuring a cameo from yours truly) on how exactly they sent the messages to space.

For those who don’t know, the Wow! Signal (learn more here) is an extraterrestrial radio signal picked up by Ohio State University’s Big Ear radio telescope on August 15, 1977. It lasted 72 seconds, and has never been heard again. Many believe it could have been a signal sent out by intelligent life somewhere far off in space, where others feel it could in fact simply be something from our own planet that found its way back.

We’ll likely never know the origins of the Wow! Signal, but National Geographic has decided to send out a response just in case there’s an intelligent species somewhere out there beneath the pale moonlight (and beyond) to receive it. Even better, they want that response to come from YOU.

Continue reading to find out how your message to another world could find itself beamed out to space.