On the outside, it has been designed to look like a fit, athletic human, with robust-looking pecs, biceps and quad muscles around the thighs. But this seems to have stoked fears that it could ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Archaeologists have ...

Human brains contain higher concentrations of microplastics than other organs, according to a new study, and the amount appears to be increasing over time. In the study, published in early ...