In 2004,astronomers Made a Significant Discovery That Enabled Them to Test

question 211

Multiple Choice

In 2004,astronomers made a significant discovery that enabled them to test some of the predictions of general relativity.What was this discovery?

• A) a neutron star with a mass more than a hundred times the mass of the Sun
• B) two neutron stars collided with each other
• C) a pulsar that was not precessing and, in fact, that aimed its radiation beam directly at Earth
• D) two pulsars in orbit around each other

---

Definitions:

Contests

Competitive events where individuals or teams compete against each other according to specific rules to win prizes or recognition.

Trade Promotion

Sales promotion geared to marketing intermediaries rather than to final consumers.

Marketing Intermediaries

Organizations or individuals that act as a middleman in the distribution process, moving products from the manufacturer to the consumer.

Investments

Items or resources purchased with the intention of earning revenue or increasing in worth as time progresses.