Physics

171 articles with this tag

What Are Quasars and How Do They Shape Galaxies? Science

What Are Quasars and How Do They Shape Galaxies?

Quasars are the brightest objects in the universe, powered by supermassive black holes devouring matter at galactic cores. New research shows their ra...

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How Superconductors Work—and Why We Want Them Warmer Science

How Superconductors Work—and Why We Want Them Warmer

Superconductors carry electricity with zero resistance, enabling MRI machines, maglev trains, and quantum computers. Scientists are racing to make the...

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How Supercooled Water Works—and Why It Has Two Liquid Phases Science

How Supercooled Water Works—and Why It Has Two Liquid Phases

Scientists have long known water behaves unlike any other liquid. The discovery of a second critical point in supercooled water finally explains why i...

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How Helioseismology Works—Hearing Inside the Sun Science

How Helioseismology Works—Hearing Inside the Sun

Helioseismology uses millions of sound waves rippling through the Sun to map its hidden interior, much like an ultrasound scans the human body. The te...

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What Are Super-Earths and Why Scientists Hunt Them Science

What Are Super-Earths and Why Scientists Hunt Them

Super-Earths are exoplanets up to ten times Earth's mass that dominate our galaxy yet have no counterpart in our solar system. Scientists study them f...

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How Pulsars Work—the Universe's Cosmic Lighthouses Science

How Pulsars Work—the Universe's Cosmic Lighthouses

Pulsars are rapidly spinning neutron stars that sweep beams of radiation across space like cosmic lighthouses. Here is how they form, why they tick wi...

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How Singlet Fission Works—and Why It Could Transform Solar Science

How Singlet Fission Works—and Why It Could Transform Solar

Singlet fission is a quantum process that splits one photon's energy into two electron-hole pairs, potentially pushing solar cell efficiency far beyon...

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How Lightning Works on Jupiter—and Why It's So Extreme Science

How Lightning Works on Jupiter—and Why It's So Extreme

Jupiter produces lightning bolts up to a million times more powerful than Earth's. From ammonia mushballs to stealth superstorms, here is how the gas...

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How Heavy Water Reactors Work—and Why They Matter Science

How Heavy Water Reactors Work—and Why They Matter

Heavy water reactors use deuterium oxide instead of ordinary water to moderate nuclear reactions, enabling the use of natural uranium fuel — but also...

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How Mass Spectrometry Works—and Why It Matters Science

How Mass Spectrometry Works—and Why It Matters

Mass spectrometry identifies molecules by measuring their mass-to-charge ratio. From drug discovery to forensics, this century-old technique underpins...

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How Ice Melt Slows Earth's Spin—and Warps Time Science

How Ice Melt Slows Earth's Spin—and Warps Time

Melting polar ice redistributes mass from the poles to the equator, slowing Earth's rotation and lengthening days by milliseconds per century—with rea...

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What Is Earth's Albedo and Why It Keeps Dropping Science

What Is Earth's Albedo and Why It Keeps Dropping

Earth's albedo — the fraction of sunlight our planet reflects back to space — is declining to record lows, accelerating global warming through powerfu...

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