Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

2023年、火星から地球に向けて暗号化された「エイリアン・メッセージ」が送信された。それから1年半、アマチュア科学者である父と娘が、ついにその解読に成功したそうだ。 じつはこれ「A Sign in Space」と呼ばれるSETI研究所の実験的なプロジェクトとして ...

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red sprites. These rare upper-atmosphere lightning phenomena occur high above ...