Natalie Wolchover

Senior Writer/Editor

Magnetic fields in the universe.
cosmology

The Hidden Magnetic Universe Begins to Come Into View

July 2, 2020

Astronomers are discovering that magnetic fields permeate much of the cosmos. If these fields date back to the Big Bang, they could solve a major cosmological mystery.

The XENON1T detector’s time projection chamber.
Abstractions blog

Dark Matter Experiment Finds Unexplained Signal

June 17, 2020

Researchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.

A falling apple.
Abstractions blog

Why Gravity Is Not Like the Other Forces

June 15, 2020

We asked four physicists why gravity stands out among the forces of nature. We got four different answers.

A black hole shooting thunderbolts.
quantum gravity

Black Hole Paradoxes Reveal a Fundamental Link Between Energy and Order

May 28, 2020

By chewing on the problems posed by “extremal” black holes, physicists have exposed a surprising and universal connection between energy and entropy.

Abstractions blog

Neutrino Asymmetry Passes Critical Threshold

April 15, 2020

The first official evidence of a key imbalance between neutrinos and antineutrinos provides one of the best clues for why the universe contains something rather than nothing.

theoretical physics

Does Time Really Flow? New Clues Come From a Century-Old Approach to Math.

April 7, 2020

The laws of physics imply that the passage of time is an illusion. To avoid this conclusion, we might have to rethink the reality of infinitely precise numbers.

Image of LIGO’s mirror.
Abstractions blog

To Make the Perfect Mirror, Physicists Confront the Mystery of Glass

April 2, 2020

Sometimes a mirror that reflects 99.9999% of light isn’t good enough.

Swirling video.
Abstractions blog

Axions Would Solve Another Major Problem in Physics

March 17, 2020

In a new paper, physicists argue that hypothetical particles called axions could explain why the universe isn’t empty.

A close-up of fossilized amber.
materials science

Ideal Glass Would Explain Why Glass Exists at All

March 11, 2020

Glass is anything that’s rigid like a crystal, yet made of disordered molecules like a liquid. To understand why it exists, researchers are attempting to create the perfect, still-hypothetical “ideal glass.”