Why Not Talk About Death?

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.

The Interdependence Of Humanity And Earth

We owe our existence to little photosynthetic bacteria — but there is much more to this story, as life can only mutate and adapt when the planet offers the right conditions, says Marcelo Gleiser.