How Do Astronomers Know That Dark Matter Is "Cold

question 1

Multiple Choice

How do astronomers know that dark matter is "cold"?

• A) laboratory measurements of its properties
• B) computer simulations of structure formation
• C) measurements of its annihilation radiation
• D) gravitational lensing

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Definitions:

Negligence

Failure to take reasonable care to avoid causing injury or loss to another person, resulting in legal liability for the resulting harm.

Directors

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Board Meetings

Formal gatherings of the board of directors of an organization or company to discuss and decide on corporate matters.

Litigation

The process of taking legal action in court to enforce or defend rights.