Opinion

If the history of thermodynamics can teach us anything, it is that modest entropy reversals have not taken us back in time at all. But it is more fun to think otherwise, says guest Jimena Canales.

Commentator Adam Frank talks with Harvard astrophysicist Avi Loeb about exo-civilizations, techno-signatures, and the search for alien life — living or long-gone.

Hot cross buns have been an Easter treat for centuries. But before that, pagans exchanged them as part of a spring ritual celebrating the four seasons or the phases of the moon. Can they morph again?

We all stand to lose from the gulf between the sciences and the humanities, and the classroom is the ideal place for conversations between these two cultures to unfold, says professor Marcelo Gleiser.

How can we succeed in creating and perpetuating a culture that values and promotes truth? Cognitive scientist Tania Lombrozo considers the science of fake news — and how to protect ourselves.

Many people just don't want to talk about what it means to live in the face of death. Astrophysicist Adam Frank reflects on life and death — and invites others to do the same.

If confirmed, Gina Haspel will become the first career professional of the CIA to rise through the ranks to the top job in a long time, writes Paul Pillar.

This week on Ask Code Switch: Is it OK for a white teenager to use emojis that don't match her skin color? ¯\_(ツ)_/¯

If President Trump winds up across the table from Kim Jong Un, he should study the lessons from previous attempts to denuclearize North Korea, writes Scott Snyder.

A scientific project for killing invasive green iguanas in Florida has become the center of national attention. Anthropologist Barbara J. King looks at wildlife management and methods.