NASA’s Chandra X-ray telescope has made the first detection of X-ray emission
from young solar-type stars that lie outside our Milky Way galaxy. They live in a
region known as the “Wing” of the Small Magellanic Cloud, a satellite galaxy of
our Milky Way. X-rays from young stars trace how active their magnetic fields are.
Magnetic activity provides clues to a star’s rotation rate and the rising and falling
of hot gas in the star’s interior. Astronomers suggest that if the X-ray properties of
young stars are similar in different environments around our galaxy, then other
related properties, such as the formation of planets, are also likely to be similar.
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