science & space•Wed, August 12, 2026•4 min read

Astronomers Just Dropped the Largest 2D Map of the Universe Ever Created

A massive new 2D map of the universe has been released, cataloging nearly 4 billion stars, galaxies, and cosmic phenomena. Spanning 5.6 trillion pixels, this decade-long project serves as a foundational tool for future deep-space research.

A New Portrait of the Cosmos

Astronomers have officially released the most expansive two-dimensional map of the universe ever produced. Created by the Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys team, this colossal endeavor catalogs nearly 4 billion celestial objects—ranging from distant galaxies and stars to black holes and asteroids.

The map is a staggering technical achievement, composed of 5.6 trillion pixels. It acts as a comprehensive "deep photograph" of the night sky, providing researchers with a vital resource for navigating the complexities of our universe. By stitching together 263,407 individual telescope exposures taken over more than a decade, the team has created a permanent fixture for modern astronomy.

A view of the cosmic structures captured by the DESI Legacy Imaging Surveys.

How the Map Came to Life

The production of this map was a multi-institutional effort involving more than 160 scientists. It synthesized data from three major ground-based sky surveys:

Dark Energy Camera Legacy Survey (DECaLS) at NSF Cerro Tololo Inter-American Observatory
Mayall z-band Legacy Survey (MzLS) at NSF Kitt Peak National Observatory
Beijing-Arizona Sky Survey (BASS) at the University of Arizona’s Steward Observatory

This collaborative effort isn't just about taking pictures of space; it’s about providing a roadmap. The 2D imagery allows astronomers to pinpoint exact locations and brightness levels of objects. This data serves as the critical foundation for the primary DESI mission: to build a high-resolution 3D map that helps scientists investigate the mysterious nature of dark energy.

It's part of the fabric of astronomy research now.
— DESI Legacy Imaging Surveys Research Team

Impact and Future Implications

For the wider scientific community, this map functions as a pointer. Astronomers can cross-reference the Legacy Surveys data with their own targeted observations to study rare cosmic phenomena. By providing a publicly viewable interface via the Legacy Survey Sky Viewer, the project democratizes access to deep-space data, ensuring that both professional researchers and curious observers can explore the fabric of our universe.

Key Takeaways

The new 2D map contains 5.6 trillion pixels and tracks 4 billion cosmic objects.
The data was compiled from 263,407 telescope exposures collected over a decade.
The map was created by the DESI Legacy Imaging Surveys team, involving over 160 contributors.
This 2D map is a precursor to a high-resolution 3D map aimed at studying dark energy.
The data is publicly accessible for researchers and the general public to view.

FAQ

How many objects are included in the new universe map?

The map identifies and catalogs nearly 4 billion celestial objects, including stars, galaxies, black holes, and asteroids.

How long did it take to create this map?

The project represents more than a decade of observational work, combining 263,407 individual telescope exposures.

Who created the map?

It was created by the DESI (Dark Energy Spectroscopic Instrument) Legacy Imaging Surveys team, with contributions from over 160 scientists.

Can the public view this map?

Yes, the data is publicly available and can be explored online through the Legacy Survey Sky Viewer.

Why is this 2D map important for 3D mapping?

The 2D map acts as a foundational guide, identifying where objects are and how bright they appear, which allows researchers to select specific targets for 3D distance measurements.