Quasars, and the menagerie of other galaxies with "unusual nuclei", now collectively known as Active Galactic Nuclei or AGN, have, in one form or another, spark

A delightful tour of the greatest ideas of math, showing how math intersects with philosophy, science, art, business, current events, and everyday life, by an a

Publisher description

"An introduction to quasars and black holes with information about their formation and characteristics. Includes diagrams, fun facts, a glossary, a resource lis

Be amazed by 25 iconic pieces of tech from the Star Trek canon and the science behind how they function with Treknology. You will not believe how close we are t