Share this:

Like this:

This is the most detailed 3D map of the universe ever made and it is fascinating

The Dark Energy Spectroscopic Instrument (or DESI for short) has created the largest 3D map of the universe we have ever seen. DESI created the card over the course of seven months. Every month, DESI continues to build on that. In fact, DESI is only 10 percent of the way through its proposed five-year mission. When the map is finished, it will give us a deeper look into the universe and its depth.

According to ScienceAlert, DESI has already managed to catalog more than 7.5 million galaxies. In addition, it will continue to add one million new galaxies each month. When the scan is finally completed in 2026, we will have data on more than 35 million galaxies in space. It should give astronomers a huge map of the universe to study and dig into.

This is the largest map of the universe ever

A snippet through the 3D map of galaxies from the completed Sloan Digital Sky Survey and from the first few months of the Dark Energy Spectroscopic InstrumentImage source: D. Schlegel / Berkeley Lab

Some of the researchers with DESI presented the instrument's performance so far at a Berkeley Lab-hosted webinar recently. Despite only being seven months inside the study, DESI has shattered all previous records for mapping the universe.

Over 5,000 optical fibers make up the instrument. Researchers can control and position each one exactly as needed. These fibers allow DESI to capture color spectrum images of galaxies. DESI can then use these images to measure how much the light it captures is redshifted. Redshift is a measure of how much light has been pushed toward the red end of the spectrum.

Seeing the redshift allows astronomers to determine how far away the light came from. This allows us to give depth to the universe. The greater the redshift, the further away is the object emitting it. When looking at a map of the universe, this is important for measuring distance.

DESI's main purpose

Planets in the solar systemImage source: Denis Rozhnovsky / Adobe

The main purpose of DESI is to reveal more about the dark energy that exists throughout the universe. Dark energy makes up about 70 percent of the universe, and it plays a major role in accelerating its expansion. Carlos Frenk, a cosmologist at Durham University in the UK, recently told the BBC that DESI will help search for clues about the nature of dark energy.

In addition, this will provide more information about dark matter and how it helps with the formation of galaxies. Scientists want a better picture of how big the universe is when DESI completes its mission. It will also help us map out places we need to explore more.

Leave a Reply

Your email address will not be published. Required fields are marked *

Share this:

Like this:

%d bloggers like this: