The most beloved beings from strange new worlds.

Researchers have catalogued which alien plants may pose a threat to plants in the Arctic. The post Study warns thousands of ...

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

WARSAW, Poland (AP) — A respected Polish scientific institute has classified domestic cats as an “invasive alien species,” citing the damage they cause to birds and other wildlife. Some cat lovers ...

The sea is dark and full of terrors. There may or may not be water on Mars, but there are apparently Martians in the water. A fisherman is making waves after sharing footage of a bizarre, mystery sea ...

"Scientists are confident that life exists elsewhere in the universe. Yet rather than taking a realistic approach to what aliens might be like, we imagine that life on other planets is the stuff of ...