In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

An extraterrestrial misunderstanding led to a grave-robbing bonanza at the detriment of valuable Peruvian heritage.

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

Stretching across the sun-baked plains of southern Peru, the Nazca Lines have inspired awe, obsession, and wild speculation ...

Released in March, the new sci-fi flick 'Project Hail Mary' features Puerto Rican puppeteer James Ortiz, who stars opposite ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us? It’s a ...

The highly anticipated second season of Alien: Earth will feature a brand-new character as FX reveals the addition of an ...

Interest in unidentified aerial phenomena (UAPs) surged in February when Barack Obama stated aliens are "real," though he ...