How Do Astronomers Know That There Aren't Significant Amounts of Dark

question 29

Multiple Choice

How do astronomers know that there aren't significant amounts of dark matter within our solar system?

• A) so much dark matter would affect the amount of energy coming out of the Sun, and we see no evidence for that
• B) a lot of dark matter would affect the motions (orbits) of our spacecraft as the move through the solar system, and see no such effect
• C) the theory of dark matter, which now explains everything we want to know about it, tells us that it can only exist on the outside of galaxies
• D) such dark matter would affect the weather patterns on Earth, and we see no such effect
• E) astronomers have now discovered quite a bit of dark matter in the solar system, so the premise of the question is wrong

---

Definitions:

Trade-Offs

Decisions involving a sacrifice of one goal or value in order to obtain or prioritize another, often in the context of limited resources.

Programs

Planned series of events, activities, or operations aimed at achieving specific goals or outcomes.

Sustainability

The practice of meeting current needs without compromising the ability of future generations to meet their own needs, often focusing on environmental, economic, and social factors.

Natural Environment

The physical surroundings in which living organisms interact, including land, water, air, natural resources, and all living things.