Skip to main content
See every side of every news story
Published loading...Updated

See the Most Detailed Map of Dark Matter Ever Made, Bringing Astronomers a Step Closer to Unraveling Its Mysterious Nature

The James Webb Space Telescope mapped dark matter over 0.54 square degrees, identifying about 800,000 galaxies, doubling previous Hubble survey counts, researchers said.

  • On January 26, 2026, researchers unveiled an ultra-high-resolution dark matter map based on James Webb Space Telescope observations in Nature Astronomy, twice as sharp as previous maps using fresh COSMOS field data.
  • By analyzing tiny distortions in 129 galaxies per square arcminute, researchers used weak gravitational lensing to reveal dark matter’s gravity pulling ordinary matter into early universe clumps.
  • Using about 255 hours of Webb data, JWST's Near‑Infrared Camera mapped nearly 800,000 galaxies across 0.54 square degrees in the constellation Sextans, spanning two and a half times the width of the full Moon.
  • Upcoming observatories such as ESA's Euclid and NASA's Nancy Grace Roman Space Telescope will map dark matter over larger areas, while the COSMOS-Webb collaboration plans follow-up observations using the high-resolution benchmark.
  • By revealing the invisible scaffolding, the map confirms dark matter tightly connects to visible matter and holds the Milky Way together, enabling galaxies, stars and life to emerge.
Insights by Ground AI

20 Articles

Think freely.Subscribe and get full access to Ground NewsSubscriptions start at $9.99/yearSubscribe

Bias Distribution

  • 83% of the sources are Center
83% Center

Factuality Info Icon

To view factuality data please Upgrade to Premium

Ownership

Info Icon

To view ownership data please Upgrade to Vantage

sci.news broke the news in on Tuesday, January 27, 2026.
Too Big Arrow Icon
Sources are mostly out of (0)

Similar News Topics

News
Feed Dots Icon
For You
Search Icon
Search
Blindspot LogoBlindspotLocal