Enlarge / Proxima Centauri, the closest star to Earth aside from the Sun. (credit: ESA, Hubble, and NASA) Modern human society has been making it ever more challenging for astronomers to get their job done. While we’ve designated radio-quiet areas and dark skies initiatives, tensions have been heightened recently by the launch of broadband-Internet satellites, […]
Enlarge / This is what Earth looks like from within the Solar System. Imaging it from a different system entirely poses some challenges. (credit: NASA/JPL-Caltech/Space Science Institute) The search for extraterrestrial intelligence (SETI) has primarily involved looking outward and searching nearby stars for signals that can’t be explained by known natural processes. But there has […]