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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Gunveen Gunveen
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5 years ago
Changing minds:  From the time the idea of dark matter was first proposed in the 1930s, it took nearly 50 years for astronomers to universally accept the existence of dark matter. Discuss the process by which that acceptance came about. What evidence was collected, and how was it checked?
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The Essential Cosmic Perspective

The Essential Cosmic Perspective


Edition: 7th
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sg000sg000
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5 years ago
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Gunveen Author
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5 years ago
You make an excellent tutor!
TheMoffattMan
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Yesterday
Good timing, thanks!
sleinhi
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2 hours ago
Helped a lot
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