why they call dark matter “matter”
Because as far as we can tell it is matter. It's just a special type of matter which doesn't interact at all with the electromagnetic force, so we can't directly see it. **Edit:** Something I want to add, matter that doesn't interact much with EM isn't actually all the strange.
The Short Answer
Because as far as we can tell it is matter. It's just a special type of matter which doesn't interact at all with the electromagnetic force, so we can't directly see it. **Edit:** Something I want to add, matter that doesn't interact much with EM isn't actually all the strange. For example, neutrinos interact very weakly with EM yet they have mass(There are billions of neutrinos from the Sun passing through your thumb every second). What's strange about dark matter is that cosmologists have been systematically going through all the possible candidates(like neutrinos) that we know of and showing that they can't explain the dark matter effects we see.
Analysis
Key Concepts: Matter, interact, neutrinos
This explanation focuses on matter, interact, neutrinos and spans 111 words across 5 sentences. At 54% above the average Science explanation (72 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.
What This Answer Covers
The explanation opens with: “Because as far as we can tell it is matter.” It then elaborates with concrete examples, ultimately building toward a complete picture across 5 connected points.
How This Compares in Science
Ranked #94 of 500 Science questions by answer depth (top 20%). This places it in the comprehensive tier — the top quarter of most thoroughly answered questions. Questions at this depth typically involve multi-faceted topics requiring nuanced explanation.
Frequently Asked Questions
Is there a simple explanation for why why they call dark matter "matter"?
Because as far as we can tell it is matter. It's just a special type of matter which doesn't interact at all with the electromagnetic force, so we can't directly see it. **Edit:** Something I want to add, matter that doesn't interact much with EM…
How detailed is this explanation compared to similar Science questions?
This is one of the most thorough answer at 111 words, ranked #94 of 500 Science questions by depth. The key concepts covered are matter, interact, neutrinos.
What approach does this answer take to explain why they call dark matter "matter"?
The explanation uses root cause analysis and concrete examples across 111 words. It is categorized under Science and addresses the question through 2 analytical lenses.