Science News Today | Latest Science News & Discoveries

What Is a White Hole? The Theoretical Time-Reversal of a Black Hole

What Is a Primordial Black Hole? The Ancient Relics of the Big Bang

What Is a Singularity? The Infinite Density Point at the Center of a Black Hole

What Is General Relativity? Einstein’s Masterpiece and How It Explains Gravity

What Is Time Dilation? Why Gravity Changes the Flow of Time

What Is a Wormhole? The Theoretical Bridges Across the Universe

What Is a Gravitational Wave? Ripples in Spacetime Detected from Distant Collisions

What Is an Accretion Disk? The Glowing Ring of Matter Around a Black Hole

What Is a Kerr Black Hole? Understanding the Physics of Rotating Singularities

What Is Hawking Radiation? The Theoretical Way Black Holes Slowly Evaporate

What Are Supermassive Black Holes? The Titans at the Heart of Galaxies

What Is Spaghettification? The Extreme Gravity of Black Hole Tidal Forces

What Is an Event Horizon? The Point of No Return in Space

What Is a Black Hole? The Singularity Where Physics Breaks Down

What Is a Radio Galaxy? How Galaxies Emit Powerful Waves Across Space

What Is Galactic Evolution? How Galaxies Change Over Billions of Years

What Is a Parsec? Why Astronomers Measure Distance Beyond Light Years

What Is Intergalactic Space? The Emptiness Between the Stars

What Is the Cosmic Microwave Background? The Faint Afterglow of the Big Bang

What Is Cosmic Dust? The Building Blocks of Stars and Planets

What Is the Great Attractor? The Mysterious Force Pulling Galaxies Towards It

What Is a Supercluster? The Largest Known Structures in the Universe

What Is a Galactic Halo? The Vast Spherical Region Surrounding Galaxies

What Is the Observable Universe? The Limits of What We Can See

What Is a Spiral Galaxy? The Beautiful Architecture of the Milky Way

What Is an Irregular Galaxy? The Galactic Misfits of the Cosmos

What Is an Elliptical Galaxy? The Aging Giants of the Universe

What Is the Local Group? The Galactic Neighborhood We Call Home

What Is Dark Energy? The Mysterious Force Accelerating the Expansion of Space

What Is a Quasar? The Brilliant Light of a Supermassive Black Hole