Scientists found a mysterious radio signal in space. No, it's not aliens.

Before you ask, it's not aliens, the radio signal that burst out in a heartbeat-like pattern is not aliens. That's what they're saying.

Astronomers used a radio telescope to see a strange radio burst from a distant galaxy billions of light-years away. It took up to three seconds for the signal to last. According to a press release from MIT, the team detected "bursts of radio waves that repeat every 0.2 seconds in a clear periodic pattern."

Daniele Michilli is a researcher at MIT's Kavli Institute for Astrophysics and Space Research. It was very long, lasting about three seconds, but there were periodic peaks that were remarkably precise, emitting every fraction of a second boom, boom, boom. The signal is periodic for the first time.

Aliens aren't reaching out to us. I think it's possible. Scientists believe the signal is coming from a type of star.

There aren't many things in the universe that emit periodic signals. Radio pulsars and magnetars, which produce a beamed emission similar to a lighthouse, are examples of things we know of in our own universe. The signal could be a magnetar or a pulsar.

It's a bad day. Is it possible that it should be aliens? "It's not aliens, it's just something else," wroteMiriamKramer at the time. It isn't aliens. Don't say it's aliens.