Astronomy Picture of the Day
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Beginning with a full view of beautiful spiral
follow the insets (left, bottom, then right) to
on a real survivor.
Seen at the center of the final field on the right is a star
the survivor of a cosmic cataclysm
of its companion star.
Light from the cosmic blast, likely triggered by the
core collapse of a star initially more than 10 times as massive as the Sun,
first reached Earth over 10 years ago and was
supernova SN 1993J.
Though the supernova itself is no longer visible,
dust in the region can still be seen near the companion, the first
known survivor of a
in a binary star system
Astronomers believe that a substantial
to the surviving companion star during the last few hundred years
before the stellar explosion can explain peculiarities seen
Large Magellanic Cloud,
in nearby M81 is the brightest supernova seen in modern times.
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