Category: Universe

Looking for a lone signal from some far-flung alien civilization is one thing — looking for its handiwork on galactic scales is quite another. But a handful of astronomers are still hopeful that if hyper-advanced extraterrestrial civilizations can survive through cosmic time, they might choose to …

AstronomyStrange signals from the sky may be signs of aliens Or maybe something equally weird, but not alive print-edition iconFrom the print edition | …

You can’t just use a run-of-the-mill telescope to find aliens. Even the sophisticated ones that lead to the discovery of new planets and moons are …

Space is big and dark, and since there is no air, no one can hear you scream as you float away forever and ever and ever. But those are only the …