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View Full Version : Discussion: Early Supernovae Seeded the ...



Fraser
2003-Sep-19, 09:58 PM
SUMMARY: According to cosmologists, the early Universe only had a mixture of hydrogen, helium and other lighter elements, but none of the heaver elements required for life - like carbon. From the original gasses, giant stars formed - some were 200 times larger than our Sun - lived for a brief time, often just a few million years. These giant stars converted up to 50% of their material into heaver elements, mostly iron, before exploding violently as supernovae. The James Webb telescope, due for launch after 2011 will be so sensitive it should be able to look back to watch these supernovae happening.


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