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Author Question: Venus and Mercury both have magnetic fields similar to Earth's. Indicate whether the statement is ... (Read 109 times)

ss2343

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on: Jul 27, 2018
Venus and Mercury both have magnetic fields similar to Earth's.
 
  Indicate whether the statement is true or false

Question 2

What evidence is there linking the Crab nebula to a supernova?
 
  What will be an ideal response?


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FergA

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Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

Theory says that in a Type II supernova a small remnant of the core should remain as a neutron star. If you trace the expanding gas of the Crab nebula backwards in space and time you find all the gas started at one point a little less than 1000 years ago. We find a pulsar at that point, which is a neutron star. In 1054 A.D. the Chinese recorded a supernova in the sky at the location we now find this pulsar.


ss2343

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Reply #2 on: Jul 27, 2018
TY


FergA

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Reply #3 on: Jul 27, 2018
You're welcome


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