Supernova Clarification

In need of a clarification on the last Kahn Academy video on supernova? A short video explains that while humans saw the event that became the Crab Nebula 1,000 years ago, the actual event took place 7, 500 years ago.

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Concepts

Resource Details

Grade
11th - Higher Ed
Subjects
Science
1 more...
Resource Types
Videos
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Audiences
For Teacher Use
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Instructional Strategy
Flipped Classroom
Accessibility
Closed Captions
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc