Physics

171 articles with this tag

What Is the Younger Dryas and Why It Changed History Science

What Is the Younger Dryas and Why It Changed History

The Younger Dryas was a sudden 1,200-year cold snap 12,900 years ago that killed megafauna, ended the Clovis culture, and may have pushed humans towar...

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What Is Terahertz Radiation and How Does It Work? Science

What Is Terahertz Radiation and How Does It Work?

Terahertz radiation occupies a little-known slice of the electromagnetic spectrum between microwaves and infrared light. Once dismissed as a technolog...

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What Is Dark Energy and Why Is Space Speeding Up? Science

What Is Dark Energy and Why Is Space Speeding Up?

Dark energy makes up roughly 68% of the universe and drives its accelerating expansion, yet scientists still don't know what it is. Here's how it was...

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How Spacewalks Work—and Why They're So Risky Science

How Spacewalks Work—and Why They're So Risky

Every time an astronaut floats outside a spacecraft, months of preparation and layers of life-saving technology stand between them and the void. Here'...

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How the LHCb Experiment Discovers New Subatomic Particles Science

How the LHCb Experiment Discovers New Subatomic Particles

CERN's LHCb detector has confirmed dozens of never-before-seen particles, including exotic baryons with two charm quarks. Here is how the machine work...

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How Dinosaurs Hatched Eggs—With Help From the Sun Science

How Dinosaurs Hatched Eggs—With Help From the Sun

Long before modern birds perfected the art of brooding, oviraptor dinosaurs used a remarkable combination of body heat and solar warmth to incubate th...

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What Is Negative Light and How It Hides Secret Data Technology

What Is Negative Light and How It Hides Secret Data

Negative luminescence is a counterintuitive physics phenomenon where a device emits less infrared radiation than expected — and researchers are now us...

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How Commercial Moon Landers Work—and Why They Matter Science

How Commercial Moon Landers Work—and Why They Matter

NASA's Commercial Lunar Payload Services (CLPS) program contracts private companies to deliver scientific instruments to the Moon at a fraction of tra...

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What Is the Migdal Effect and Why It Matters Science

What Is the Migdal Effect and Why It Matters

The Migdal effect is a quantum phenomenon predicted in 1939 that could unlock the detection of light dark matter — and scientists have only just confi...

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How PET Scans Work and Why They Detect Cancer Early Health

How PET Scans Work and Why They Detect Cancer Early

PET scans use radioactive sugar tracers and gamma-ray detection to map metabolic activity inside the body, revealing tumors long before symptoms appea...

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What Is Lonsdaleite—the Diamond Harder Than Diamond? Science

What Is Lonsdaleite—the Diamond Harder Than Diamond?

Lonsdaleite, or hexagonal diamond, is a rare carbon allotrope born from meteorite impacts. Scientists have now synthesized it in the lab, confirming i...

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What Are Fast Radio Bursts and How Do They Work? Science

What Are Fast Radio Bursts and How Do They Work?

Fast radio bursts are millisecond-long flashes of radio energy so powerful they outshine entire galaxies—yet their exact cause remained a mystery for...

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