Life's Little Mysteries: Science questions, answered

Determining the "loudest recorded sound" depends on how you define sound and on which measurements you choose to include.

How would history have unfolded if Antony and Cleopatra had defeated Octavian? Would they have ruled the Roman Empire?

Salamanders and newts are both long-tailed amphibians, but what's the difference between them?

A young child's dreams and an elderly hospice patient's dreams can be very different. What has research found about how our dreams change over time?

Normally, siblings resemble each other. So why does a litter of kittens often come in a variety of colors?

Whether Neanderthals had religious beliefs is a subject of ongoing debate.

Free radicals are highly reactive molecules that are missing an electron. They get a bad rap, but could they actually have any benefits?

While it might seem like an all-or-nothing process, insect metamorphosis likely emerged through gradual evolutionary changes.

Rome is famous for its gladiators, but were any of these fighters women?

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the darkest of all?