A Conversation for The Life and Times of the Sun

This Article Really Needs an Update

Post 1


The Sudbury Neutrino Observatory in Ontario solved the mystery of the missing solar neutrinos at about the time this article was written.

In the eight minutes it takes for neutrinos originating at the core of our Sun to reach neutrino detectors such as the SNO on Earth, they undergo an oscillation that means that two types of neutrino cannot interact with the chlorine atoms in Ray Davis' original perchloroethane neutrino detector (where they must convert the chlorine to argon in order to be detected).

As a result of this, we know the age of our Sun to such a high degree of accuracy, it is possible in this century to predict the exact day that our Sun will begin to collapse and then expand to engulf the inner solar system as a red giant.

The fusion of hydrogen to helium in a star such as our Sun does not end the fusion process. Like other stars of the main sequence, it is possible for atoms to fuse up until it becomes iron nuclei, but with diminishing returns in terms of energy output (see "binding energy vs. number of nucleons curve" in nuclear physics).

This Article Really Needs an Update

Post 2

lil ~ Auntie Giggles with added login ~ returned

Hi danshawen, it's me again! smiley - diva

If you see anything that requires a minor update, can you please contact Editorial Feedback on A388334 give them a the information and note the area of the Entry to be altered.

Updated Entries are completely different - these are usually done as re-writes which include some or all of the originally Entry and the previous author is acknowledged within the updated version.

If in doubt, just contact me via your Welcome Message smiley - ok

lil x

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