n MNASSA : Monthly Notes of the Astronomical Society of South Africa - Alternative yardstick to measure the universe : news notes
|Article Title||Alternative yardstick to measure the universe : news notes|
|© Publisher:||Astronomical Society of Southern Africa (ASSA)|
|Journal||MNASSA : Monthly Notes of the Astronomical Society of South Africa|
|Author||Eugenie Samuel Reich|
|Publication Date||Dec 2010|
|Pages||211 - 213|
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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