4 ms·
Independent measurements but not necessarily independent assumptions, and hence interpretations of those results.
by cristianpascu 12y ago
Independent measurements but not necessarily independent assumptions, and hence interpretations of those results.
- antognini 12y agoThe assumptions are pretty independent, too. The tightest constraints on the age of the universe come from measurements of the Hubble constant from Type Ia supernovae. There are certain assumptions in this measurement about how Type Ia supernovae evolve over the age of the universe. The other constraints come from the ages of the oldest globular clusters. The assumptions in this measurement basically have to do with certain details of stellar physics. There isn't much overlap between the two sets of assumptions.