Life's Little Mysteries: Science questions, answered

To navigate the skies, birds rely on a complex sensory tool kit.

The color purple is, in a way, invented by our brains.

Many animals in the tropics are colorful for a number of reasons, including some you might not expect.

Are some parts of an airplane safer than others?

There are multiple contenders for the title of best smeller, but no clear winner just yet.

The human brain can make sense of sentences — even when the vowels are missing.

Look closely at the spots to tell leopards from jaguars: there's a subtle clue.

The nuclei of atoms are often portrayed as round in textbooks, but it turns out they're rarely spherical.

The number of satellites orbiting Earth is rising fast, thanks to private companies such as SpaceX. But just how big will these "megaconstellations" become? And what problems might they cause?

Parrots are prolific vocal learners. But do they actually understand the words they say?