Life's Little Mysteries: Science questions, answered

Why is one foot sometimes larger than the other?

For people who have been blind since birth, brain scans alone can't reveal if they dream in images.

Dangerous strains of E. coli bacteria can infiltrate the food supply through many different routes, experts explain.

In 1974, Stephen Hawking proposed that black holes could evaporate. But do we understand how this might happen?

The world we live in might be unrecognizable if Alexander the Great had been defeated by the Persians.

Atoms make up everything around us, but do these building blocks of matter ever actually touch?

The infinite monkey theorem is a fun thought experiment, but does it actually apply to our finite world?

Scientists have identified some of the involved genes behind cats' spots, but there's still a piece missing.

Scientists have been vollying the question back and forth for more than a century.

The answer depends on many factors, including the amount of fuel needed, the moon's orbit and the mission's objectives.