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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