Cross-section of Earth showing tectonic plates and the mantle beneath them

Plate Tectonics: How Earth’s Continents Move and Why It Matters

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Earth's outer shell is not one solid piece. It is broken into large slabs called tectonic plates, which float on the hotter, softer rock...
Ocean waves rolling onto a beach at low tide with the Moon in the sky

How Tides Work: Why the Moon and Sun Pull the Ocean

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Tides are the regular rise and fall of the sea. Most coasts see two high tides and two low tides roughly every 24 hours...
Emergency kit with water, torch and first aid supplies on a floor

Earthquake Preparedness: A Home Checklist for Before, During and After

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An earthquake gives little or no warning, so preparation matters most before the shaking starts. Most injuries happen from falling objects, not from building...
Sunlight passing through the atmosphere over a globe, illustrating the greenhouse effect

The Greenhouse Effect: How Earth Stays Warm and Why It Matters

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The greenhouse effect is the natural process that keeps Earth warm enough for life. Sunlight passes through the atmosphere, warms the surface, and some...
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Ball Lightning Finally Measured: The First Spectrum, Recorded by Accident

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Witnesses described ball lightning for 800 years and scientists had no data. In 2012 a lightning team on the Tibetan Plateau recorded one by accident. Here is what the spectrum showed.
Silhouette of a person sun gazing against a bright sky

Chakras Explained: Origins, the Seven Centres and What Evidence Says

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The seven chakras, where the concept comes from, and what the evidence does and does not support about cleansing and balancing them.
Ocean horizon split between warm golden light and cool blue shadow

El Niño vs La Niña: What Changes and When

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El Niño vs La Niña explained: how each ENSO phase works, their opposite effects on weather worldwide, how often each occurs, and what triggers them.
Calm tropical ocean under a hazy warm sky with heat shimmer at the horizon

Super El Niño: What Makes an El Niño ‘Super’

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What makes an El Niño a super El Niño, how the ONI index works, how these events form in the Pacific, and how they differ from ordinary El Niño.
Macro photograph of a glowing incandescent filament coil burning bright against darkness

How Does Electricity Work? From Electrons to Your Socket

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How electricity works: voltage, current and resistance, what a circuit does, how power reaches your socket, and why it is dangerous.
A natural history museum gallery with rows of mounted animal skeletons in warm light

What Is Evolution? Mechanisms, Evidence and Facts

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What evolution is, the four mechanisms, the evidence from fossils to DNA, and clear answers to the most common objections.