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Encyclopedia-style articles for every topic on TruthOrBluff, written at four reading levels: Rookie (8+), Curious (12+), Sharp (16+), and Expert (18+). Every claim is sourced; many are independently fact-checked by AI reviewers.

Science & Discovery

Space & Astronomy

The Visible Universe

93 billion light-years across, two trillion galaxies, and expanding faster than light.

4 reading levels: Rookie · Curious · Sharp · Expert

The Milky Way Galaxy

Our home galaxy: 100,000 light-years across, hundreds of billions of stars, and a supermassive black hole at its heart.

4 reading levels: Rookie · Curious · Sharp · Expert

Stars

Born in nebulae, fusing 1.3 trillion pounds (600 billion kg) of hydrogen per second, dying as white dwarfs, neutron stars, or black holes. The engines of the universe.

4 reading levels: Rookie · Curious · Sharp · Expert

Physics & Particles

The Standard Model

Seventeen fundamental particles describe everything you've ever seen, touched, or breathed.

4 reading levels: Rookie · Curious · Sharp · Expert

CERN & the LHC

A 27 km ring under France and Switzerland where protons collide at 99.9999991% the speed of light.

4 reading levels: Rookie · Curious · Sharp · Expert

Matter & Antimatter

Every particle has an evil twin, and the universe somehow ended up with more of one than the other.

4 reading levels: Rookie · Curious · Sharp · Expert

The Speed of Light

299,792,458 meters per second is more than a speed limit. It's the cosmic rule nothing with mass can break.

4 reading levels: Rookie · Curious · Sharp · Expert

Relativity & Motion

Bounce a tennis ball. By the time it lands, you've moved millions of miles. Welcome to reference frames.

4 reading levels: Rookie · Curious · Sharp · Expert

Gravity & Gravitational Waves

Einstein bent spacetime. LIGO heard the ripples. The graviton, if it exists, has eluded every detector ever built.

4 reading levels: Rookie · Curious · Sharp · Expert

The Nature of Mass

Atoms are 99.9999% empty space. 99% of your weight is binding energy. Mass is what energy looks like when it stops moving.

4 reading levels: Rookie · Curious · Sharp · Expert

Quantum Mechanics

The framework that breaks classical intuition: wave-particle duality, uncertainty, entanglement, and the strange machinery that makes the universe possible.

4 reading levels: Rookie · Curious · Sharp · Expert