Sentences with phrase «reliable distance marker»

But last year an international team of researchers found an even more reliable distance marker — the first - ever strongly lensed Type Ia supernova.

But black hole mergers would be much more reliable distance markers than supernovae, says Avi Loeb of Harvard University.

Not exact matches

Across successive generations, the long neck would have become an ever more reliable species marker for giraffeness, thereby enabling a partner to be spotted even from a great distance.