Universe
Discover the latest trends in Universe.
The Universe's Afterglow Explained
Discover the cosmic afterglow, the faint radiation left from the Big Bang, and what this ancient light reveals about the origins of our universe.
Active Galactic Nuclei Explained
Discover the Active Galactic Nucleus (AGN), a super-luminous region at a galaxy's heart, powered by a feeding supermassive black hole.
Accretion Disks Explained
Discover accretion disks, the swirling cosmic structures of gas and dust that power black holes and give birth to stars. Learn why they are key.
Absolute Zero: The Universe's Coldest Limit
Discover absolute zero, the theoretical coldest temperature where all particle motion ceases. Learn about 0 Kelvin and its role in quantum mechanics.
Absolute Magnitude: Star Brightness
Discover absolute magnitude, the true measure of a star's brightness. Learn how astronomers use it to compare cosmic objects and measure distances.