Erik Irmer has been documenting the spread of invasive plant and animal species that disrupt native ecology across Europe. He focuses on humans’ interactions with these plants and animals. Aliens is p ...

Several viewers expressed bewilderment at the critics' lukewarm reception. One wrote: "No idea why there's low ratings... all ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...