Biology

What Is CRISPR, and Why Is It So Important?

This revolutionary gene-editing system has taken science by storm.

Michael Tabb, Andrea Gawrylewski and Jeffery DelViscio

Biology

Gray Hair Can Return to Its Original Color—and Stress Is Involved, of Course

The universal marker of aging is not always a one-way process

Diana Kwon

Space

A Possible Link between ‘Oumuamua and Unidentified Aerial Phenomena

If some UAP turn out to be extraterrestrial technology, they could be dropping sensors for a subsequent craft to tune into. What if ‘Oumuamua is such a craft?

Avi Loeb | Opinion

Space

Maybe the Aliens Really Are Here

But if so, it’s probably in the form of robotic probes—something both UFO enthusiasts and SETI scientists should be able to agree on

John Gertz | Opinion

Biology

Mockingbirds Are Better Musicians Than We Thought

Their complex songs have striking similarities to Beethoven, Tuvan throat singing, a Disney musical and Kendrick Lamar

David Rothenberg | Opinion