With the world’s number-one virtual currency so much in the headlines and yet so little understood, it’s a good time to look at its origin, volatile price—and surprising environmental implications.

What happens when critical technology fails? Engineering physics professor Peter Townsend speaks with Vision publisher David Hulme.

Immortality may not be an option, but can degeneration and the terrors of aging be lessened or even eliminated? These authors think so.

Neurobiologist Michael Fossel explains how people’s healthy life spans can be extended and how he believes Alzheimer’s will soon be cured.

In an age when human survival seems to be hanging in the balance, cosmologist Martin Rees speculates on our collective future.

In the face of mounting threats to humanity’s continued existence on Earth, scientists are proposing various solutions. But they all seem to be overlooking one fundamental problem.

Insight Video: Many scientists are warning that the human footprint is one of indiscriminate destruction and possibly irretrievable loss. Are our days numbered?

As biotechnology marches us toward a world of new and improved human genetics, should we be optimistic—or concerned?

Insight Video: Is the present century humanity’s last? It’s a growing concern for many.