From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Some creative calculations using bug traps, epidemiology and trees suggest there are some 20 million unique insect species on ...

Case in point: Scientists from Tokyo University and Hokkaido University in Japan stumbled across some mysterious jet-black ...

At that stage they aren’t very good at cannibalism, but if a would-be Hulk manages to capture one of its siblings or cousins ...

If someone told you there’s a place in Wisconsin where the landscape looks like it was borrowed from another planet, you’d ...

Lionfish, mitten crabs and “sea vomit.” Meet eight marine species inadvertently brought to new territory that are taking the ...

For example, the fungal hyperparasite Coniothyrium minitans feasts on the pathogen Sclerotinia sclerotiorum, which frequently ...

Some frogs have evolved features so strange that scientists struggle to explain them, and a few look less like amphibians ...

Photos of amazing, almost unreal places Who needs fantasy? Earth is full of “alien planets” and surreal beauty beyond ...

In a new paper, researchers examine the possibility of other consciousnesses that take on forms far beyond our imagination.

In the book version of “Project Hail Mary,” author Andy Weir, known for grounding his fiction in plausible science, describes ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...