Why Is Supernova 1987A Particularly Important to Astronomers

question 118

Multiple Choice

Why is Supernova 1987A particularly important to astronomers?

• A)It occurred only a few dozen light-years from Earth.
• B)It provided the first evidence that supernovae really occur.
• C)It provided the first evidence that neutron stars really exist.
• D)It was the first supernova detected in nearly 400 years.
• E)It was the nearest supernova detected in nearly 400 years.

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Definitions:

Discretionary Policy

Economic policies based on the discretionary judgment of policymakers rather than set rules, often involving fiscal or monetary actions.

Budget Deficit

This occurs when a government's expenditures exceed its revenues during a specific budget period, leading to borrowing or using saved reserves.

Tax Rates

The percentage at which an individual or corporation is taxed, which can vary depending on income levels or the type of goods and services.

Tax Revenues

The income that is received by a government from taxpayers, used to fund public services and government operations.