What are the possible remnants of supernovae?
protostars or nebulae
neutron stars or black holes
white dwarfs or protostars
black dwarfs or white dwarfs
Supernovae occur during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion. Supernovae may expel much, if not all, of the material away from a star. However, if the explosion is weak enough, the star may collapse into a black hole or neutron star with little radiated energy.
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Answers by country
protostars or nebulae
neutron stars or black holes
white dwarfs or protostars
black dwarfs or white dwarfs
answers
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31
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13
the United States
182
Unknown
17
Pakistan
36
Austria
82
Australia
35
Canada
26
India
419
France
18
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13
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23
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12
the United Kingdom
106
Germany
405
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18
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35
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21
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4013
Republic of Ireland
21