Expert Voices Paul Sutter

Right now, as you read this very text, your DNA is getting sliced up by tiny, invisible bullets.

As good skeptics, we shouldn't immediately believe general relativity's tangle of mathematics at first blush. Instead, we need evidence. Good evidence.

As good skeptics, we shouldn't immediately believe general relativity's tangle of mathematics at first blush. Instead, we need evidence. Good evidence.

At 13.8 billion years ago, our entire observable universe was the size of a peach and had a temperature of over a trillion degrees.

In the late 1990s, theoretical physicists uncovered a remarkable connection between two seemingly unrelated concepts in theoretical physics.

You would think that electrons would be easy enough to describe — but a quantum-mechanical property called "spin" makes that task much less straightforward.

By now, most people have heard the refrain: "The Higgs boson creates mass." But the reality is a bit more complicated than that.

The story of Copernicus' clash with the Church over the arrangement of heavenly bodies is often painted in black and white, but at the time, philosophy, science and religion were all mixed up.

Spoiler alert: the universe is flat.

Weird and mysterious radio signals coming from outer space often are followed by claims of "aliens did it." That's likely not the case, says one astrophysicist.