If humanity ever makes contact with an intelligent extraterrestrial civilization, we will have no shortage of questions.

It’s a beautiful night. Just you, a bottle of wine and your partner drifting through the cosmos in a UFO. As your caress their green skin, you know that tonight’s the night you’re mating with an alien ...

When we imagine alien life, we picture monsters, insects, or tentacles—but what if the most realistic aliens are human-like? Evolution tends to solve the same problems with similar designs, and ...