A team of scientists has created a 3D map of the cosmos using a "dark energy" device that can map more than 100,000 galaxies. The device, known as the Dark Energy Spectroscopic Instrument (DESI), is capable of mapping the universe in unprecedented detail, providing new insights into the nature of dark energy and the expansion of the universe.

The map was created by pointing DESI at a patch of sky and measuring the light given off by the galaxies within that region. By analyzing the light, the scientists were able to determine the distance to each galaxy and create a 3D map of their positions.

The map represents a major breakthrough in our understanding of the universe, as it provides a detailed view of the large-scale structure of the cosmos. It also provides new insights into the nature of dark energy, which is believed to be responsible for the accelerating expansion of the universe.

The DESI project is a collaboration between scientists from across the world, and has been in development for more than a decade. The team behind the project hopes that the 3D map will help to answer some of the biggest questions in cosmology, including the nature of dark energy and the structure of the universe on the largest scales.

The creation of this 3D map is a major achievement for the scientific community, and represents a significant step forward in our understanding of the universe. The insights gained from this project could have profound implications for our understanding of the cosmos and the nature of dark energy.