Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

It already exists in the natural world. Now, thanks to breakthroughs in genetic engineering, scientists have created “supersilk.” And it’s poised to upgrade far more than our clothing.

Preeclampsia, a complication of pregnancy that involves high blood pressure, could have led to a decline in Neanderthals' fertility, a new study suggests.