4 ms·
The "cosmic ladder" supposition's underpinnings are a bit shaky anyway. Calculating distance and age by examining ever distant Cepheid variable stars is prone t
by starfancier 2y ago
The "cosmic ladder" supposition's underpinnings are a bit shaky anyway. Calculating distance and age by examining ever distant Cepheid variable stars is prone to cumulative error. But it's the best estimate we've got.