New research suggests advanced extraterrestrial megastructures might self-destruct within cosmic eyeblinks, leaving behind only dust and silence
New research suggests advanced extraterrestrial megastructures might self-destruct within cosmic eyeblinks, leaving behind only dust and silence
Scientists have proposed deliberately infecting Saturn’s moon Enceladus with Earth microbes to create humanity’s first artificial alien biosphere — a planetary-scale experiment that could never be undone.