If alien life does live in the warm, hydrothermal oceans of such icy moons as Europa or Enceladus, we're now a step closer to being able to identify it with accuracy. Amino acids are the building ...

Amino acids remain stable in concentrated sulfuric acid, the stuff that Venus' clouds are made of. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

The first known alien protein has been found inside a meteorite called Acfer 086 that hit Algeria 30 years ago. The hemolithin protein contains iron and lithium, fuelling theories the building blocks ...