scientific controversies
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New System Would Let Us Know If Aliens Are Using Lasers to Communicate
It’s conceivable that extraterrestrial intelligences are using powerful lasers to grab our attention, but we lack the proper tools to notice. A newly deployed system might be exactly what’s needed for us to finally make contact.
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Where Are All the Aliens? Maybe Trapped in Underground Oceans
A planetary scientist says subterranean water worlds are likely common in the galaxy and probably even better for life than Earth-like environments. Should an intelligent species arise beneath the frozen crust, however, they’d find themselves in perpetual isolation, in what is a possible solution to the Fermi Paradox.