distribution

Distribution of Dark Matter Around Galaxies 12 Billion Years Ago Revealed

Distribution of Dark Matter Around Galaxies 12 Billion Years Ago Revealed

The radiation residue from the Big Bang, distorted by dark matter 12 billion years ago. Credit: Reiko Matsushita Scientists investigated the nature of dark matter surrounding galaxies seen as they were 12 billion years ago, billions of years further back in time than ever before. Their findings offer the tantalizing possibility that the fundamental rules …

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Improved model for the mass distribution of galaxy cluster SMACS J0723.3−7327 based on Webb telescope image

Improved model for the mass distribution of galaxy cluster SMACS J0723.3−7327 based on Webb telescope image

This JWST image shows the galaxy cluster SMACS J0723.3−7327 with a large number of lensed background galaxies. The white bar at the bottom corresponds to 50 arcsec, which is approximately the maximum size of Jupiter observed from Earth. Credit: NASA, ESA, CSA and STScI Using the first science image released by the James Webb Space …

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