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Briefly explain why white- dwarf supernovae are useful for measuring cosmic distances.
Public Policy
The principles and guidelines by which governments operate, including laws, regulations, decisions, and actions to address public issues.
Eating Disorders
Mental disorders characterized by abnormal eating habits that negatively affect a person's physical or mental health.
Obesity
A medical condition characterized by excessive body fat accumulation, which poses a risk to health.
Hypothesis
A proposed explanation made on the basis of limited evidence as a starting point for further investigation.
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