It took five years to build this cosmic map, but it’s already a challenge for Einstein.

Desi's 5,000-fiber array maps 47 million galaxies in 3D, charting the universe's massive web of filaments and voids ©claire Lamman

Scientists using dark energy spectroscopy instruments have completed a five-year survey of the sky, mapping the universe beyond their original goals and asking new questions about the forces driving the expansion of the universe. dark energy spectrometer known as Digihas completed its first five years of research, providing the most detailed three-dimensional map of the … Read more