Articles on Physics

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An artist’s conception of two black holes entwined in a gravitational tango. NASA/JPL-Caltech/SwRI/MSSS/Christopher Go

Supermassive black hole at the center of our galaxy may have a friend

There is a massive black hole in the center of the Milky Way galaxy. Measurements of star orbits near this black hole suggest that there may be a second companion black hole nearby.
The laws of physics are on display at the Daytona International Speedway. Action Sports Photography/

NASCAR may be the fastest way to learn about physics

High speeds, the threat of dangerous crashes, the excitement of the crowd – and the laws of physics on full display. A physicist explains the science of NASCAR.
Some pitchers are convinced the balls are being messed with behind the scenes. Aspen Photo/

What’s really behind baseball’s home run surge?

Recent changes to the ball seem to be juicing hitters' stats. But could other factors, like the climate and advanced analytics, also be playing a role?
Earth is really ancient, and humans have only been around for a tiny part of that time. NASA

Curious Kids: how was the Earth made?

All the buildings and the cars and the restaurants, and the phones and even everything that's inside of you... it all started with an exploding star, billions of years ago.
The crests (bright) and troughs (dark) of waves spread out after they were produced. The picture applies to both light and sound waves. Titima Ongkantong

A new type of laser uses sound waves to help to detect weak forces

Most people are familiar with lasers. But what about a laser made with sound rather than light? A couple of physicists have now created one that they plan to use for measuring imperceivable forces.
The math of raindrops. Stefan Holm/

What happens when a raindrop hits a puddle?

Why does the impact of rain in a puddle look different from when it falls elsewhere, like in a lake or the ocean? A 'puddle equation' dives deep into the secret math of ripples.
Pedestrians in Tokyo pass a television screen broadcasting a report on May 4, 2019 that North Korea has fired several unidentified short-range projectiles into the sea off its eastern coast. AP Photo/Koji Sasahara

What geology reveals about North Korea’s nuclear weapons – and what it obscures

North Korea is a major military threat to the US and its Asian allies, but exactly how powerful are its nuclear weapons? An earth scientist explains why it's hard to answer this question.
Héloïse Chochois, "Embedded with Physicists” “Physics Reimagined” coll.

Seven common myths about quantum physics

Quantum physics and its mysteries… And what if this supposedly incomprehensible science weren’t so difficult for non-scientists to understand?

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