n MNASSA : Monthly Notes of the Astronomical Society of South Africa - Alternative yardstick to measure the universe : news notes

Volume 69, Issue 11_12
  • ISSN : 0024-8266



Type II supernovae may join their Type Ia cousins as gauges of cosmic expansion.

Astronomers have long relied on stellar explosions called Type Ia supernovae to measure the scale of the cosmos. A second class of supernovae may now be put to the same use, providing an independent check on measurements that were first used more than a decade ago to discover the accelerating expansion of the Universe.

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