Hydrogen and helium are the most common elements in the universe. And they might just make large planets warm enough for life.

We were pretty sure that all complex life on our world needs oxygen. Now, we're not so sure after discovering a small, harmless parasite that doesn't seem to need it.

Normally on Earth liquid water means life. But researchers found a place where that isn't the case…

Knowing how life started right here at home can tell us how likely it is to sprout on another world.

When you're trying to start carbon-based life, not just any carbon isotope will do and the one you need wouldn't even exist without a quirk of quantum mechanics.

We often worry about parents customizing their children into their warped idea of perfection. But what if the future parents want to put a limitation their kid's abilities?