'Heartbeat stars' unlocked in new study![]() Can stars have heartbeats? Okay, well, maybe not an actual heartbeat, but this recent new study has unlocked something amazing. A large number of heartbeat stars, which are binary stars, were discovered by NASA's Kepler space telescope. So how did they get their name? See, astronomers have mapped out their brightness over time and noticed that it had an incredible similarity to an electrocardiogram.
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