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I design thought experiments to provoke dialogue about who and what we want to become.

Half of your genome started out as an infection; if left unchecked, some parts of it can turn deadly all over again.

It’s the pursuit, not the goal, worth renewing.

It’s lonely to be an exceptional planet.

Why we need to branch out to solve global warming.

A study challenged the evidence for the mysterious antigravitational force known as dark energy. Then cosmologists shot back.

An organized tide of brain waves, blood and spinal fluid pulsing through a sleeping brain may flush away neural toxins that cause Alzheimer’s and other diseases.

Fritz Zwicky decoded how exploding stars fill space with cosmic rays.

The rise and fall of the claustrum epitomizes the hunt for consciousness in the brain.

Exploring Howard Nemerov’s poem, “Learning the Trees.”

For the first time, physicists have calculated exactly what kind of singularity lies at the center of a realistic black hole.