3D map of the universe

This week we got the Dark Energy Spectroscopic Instrument (DESI) grant from the U.S. Government start building a three dimensional space map. Researchers hope to collect all celestial bodies and galaxies in high resolution.

Among other things the universities of Harvard and Berkeley are involved in the project. Early next year will start the construction of the equipment, and in 2019, the first images come in. The 3D card has long been a dream of astronomers, and now, the U.S.

Department of energy pledged money to complete the project.

With the money the builders can pay the robots namely fiber threads, which can turn the light out of the room, to the correct position. The whole sky at once filming is impractical. So there are a lot of robot arms needed to observe the cables after a few hours at the turns to a different part of the sky. In this way, the universe in parts with great accuracy.

Catch the little light on the wires at the tip and carry the information from the light to other equipment for analysis.

Also one can purchase with the money spectrographs, devices that determine the wavelength of light. This is the origin of the light, and we learn more about the origin of the universe. That is the ultimate goal of DESI: understand how the universe came into existence on the basis of how it there right now.

Origins of Universe

“The DESI card will show patterns that result from an interaction between pressure and gravity in the first years after the big bang”, told Daniel Eisenstein fromĀ Harvard University and involved in the DESI-project in a press release. After the big bang gave rise to different gravity waves (whose existence was recently shown) which determined how the universe is in the hundreds of thousands of years. “The fingerprints” in the light map we can use to better understand the expansion of the universe.”

Desi is in many ways a successor to an earlier project named BOSS, that the same tried. DESI, however, produces ten times as much data, with which (hopefully) so much more to see. In total, the main unit will measure for five years.