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Kepler's Supernova (remnant pictured), the most recent supernova in the Milky Way, was observed worldwide.
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Kepler's Supernova
Supernova visible from Earth in the 17th century
SN 1604, also known as Kepler's Supernova, Kepler's Nova or Kepler's Star, was a Type Ia supernova that occurred in the Milky Way, in the constellation Ophiuchus. Appearing in 1604, it is the most recent supernova in the Milky Way galaxy to have been unquestionably observed by…Source: Wikipedia (CC BY-SA)
Supernova
Astrophysical phenomenon
A supernova is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or…Source: Wikipedia (CC BY-SA)
Milky Way
Galaxy containing the Solar System
The Milky Way or Milky Way Galaxy is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galaxy, which are so far away that they cannot be…Source: Wikipedia (CC BY-SA)