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Interstellar Matter: H 70% He 28% Rest 2% by mass. Interstellar Matter: H 70% He 28% Rest 2% by mass. 10%. Massive stars >5M o. Interstellar Matter: H 70% He 28% Rest 2% by mass. 10%. Massive stars >5M o. Supernovae. image at: www.nrao.edu/intro/.
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Interstellar Matter: H 70% He 28% Rest 2% by mass 10% Massive stars >5Mo
Interstellar Matter: H 70% He 28% Rest 2% by mass 10% Massive stars >5Mo Supernovae
Interstellar Matter: H 70% He 28% Rest 2% by mass 10% Massive stars >5Mo Supernovae Neutron Stars
Interstellar Matter: H 70% He 28% Rest 2% by mass 10% 10% Massive stars >5Mo Supernovae Neutron Stars
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% Light stars >0.8-5Mo
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 2% Light stars >0.8-5Mo Red Giants
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 2% Light stars >0.8-5Mo Red Giants Planetary Nebulae
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 2% Light stars >0.8-5Mo Red Giants Planetary Nebulae White Dwarves Lost Mass
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 2% 8% Light stars >0.8-5Mo Red Giants Planetary Nebulae White Dwarves Lost Mass
Interstellar Matter: H 70% He 28% Rest 2% by mass 75% Very light stars <0.8Mo Planetary Nebulae
Interstellar Matter: H 70% He 28% Rest 2% by mass 75% Very light stars <0.8Mo Planetary Nebulae
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 10% 75% 10% 2% 8% Very light stars <0.8Mo Light stars >0.8-5Mo Massive stars >5Mo Red Giants Supernovae Planetary Nebulae White Dwarves Neutron Stars Lost Mass
Interstellar Matter: H 70% He 28% Rest 2% by mass 15% 10% 75% 2% 8% 10% Very light stars <0.8Mo Light stars >0.8-5Mo Massive stars >5Mo Red Giants Supernovae Planetary Nebulae White Dwarves Neutron Stars Lost Mass Harry Kroto 2004