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You observe the supernova explosion of a star 100 lightyears away.

You observe the supernova explosion of a star 100 lightyears
away. The eminent scientist Alfred Einstone has
predicted that neutron stars form from the remnants of
supernovae, and take about fi ve years to form. To test
his prediction, when should you look for the neutron star
to appear?
A. 5 years from now
B. 95 years from now
C. 100 years from now
D. 105 years from now
E. Don't bother, it has already formed

This question was asked on Jan 27, 2013.

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