Should we call out to space aliens?
![](https://www.sciencenewsforstudents.org/sites/default/files/2017/03/main/articles/860_main_seti_I_man_road.png)
Ever been to a party and wondered why no one was talking to you? That’s kind of how SETI scientists feel — but on a cosmic level.
For more than half a century, astronomers have been listening to space. They use powerful radio telescopes, hoping to pick up signals from civilizations in distant space. They call this project the Search for Extra-Terrestrial Inte
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