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Astronomers Capture First Close-Up Image of a Star Beyond the Milky Way

The image of the massive red supergiant WOH G64, located in the Large Magellanic Cloud, offers unprecedented insights into the final stages of stellar evolution.

Overview

  • WOH G64, a red supergiant approximately 2,000 times larger than the Sun, lies 160,000 light-years away in the Large Magellanic Cloud, a satellite galaxy of the Milky Way.
  • Using the GRAVITY instrument on the European Southern Observatory's Very Large Telescope Interferometer, researchers created the first detailed image of a star in another galaxy.
  • The star is surrounded by an unexpected egg-shaped cocoon of gas and dust, likely ejected as it nears the end of its life, potentially leading to a supernova in thousands of years.
  • Scientists observed significant dimming in WOH G64 over the last decade, providing rare real-time insights into the behavior of dying massive stars.
  • Future upgrades to the GRAVITY instrument, known as GRAVITY+, aim to enhance observations of distant stars, exoplanets, and galactic phenomena with improved resolution.