Brice Ménard (left) and Nikita Shtarkman examine the map of the observable universe. Credit: Will Kirk / Johns Hopkins University
The map charts a broad expanse of the universe, from the
Compiled from data mined over two decades by the Sloan Digital Sky Survey, the map was created by astronomers from Johns Hopkins University. It allows the public to experience data previously only accessible to scientists.
The interactive map depicts the actual position and real colors of 200,000 galaxies. It is available online, where it can also be downloaded for free.
A new map of the universe displays for the first time the span of the entire known cosmos with pinpoint accuracy and sweeping beauty. Credit: Johns Hopkins University
“Growing up I was very inspired by astronomy pictures, stars, nebulae, and galaxies, and now it’s our time to create a new type of picture to inspire people,” says map creator Brice Ménard, a professor at Johns Hopkins. “Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like.”
The Sloan Digital Sky Survey is a pioneering effort to capture the night sky through a telescope based in New Mexico. Night after night for years, the telescope aimed at slightly different locations to capture this unusually broad perspective.
The map visualizes a slice of the universe, or about 200,000 galaxies—each dot on the map is a galaxy and each galaxy contains billions of stars and planets. The Milky Way is simply one of these dots, the one at the very bottom of the map. Ménard assembled the map with the help of former Johns Hopkins computer science student Nikita Shtarkman.
Created by Johns Hopkins University astronomers with data mined over two decades by the Sloan Digital Sky Survey, the map allows the public to experience data previously only accessible to scientists. Credit: Johns Hopkins University
The map is even more colorful due to the expansion of the universe. Because of this, the farther an object is, the redder it appears. The first flash of radiation emitted soon after the