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NASA | Why are We Seeing So Many Sungrazing Comets?
| Content Provider | WatchKnowLearn |
|---|---|
| Description | Before 1979, there were less than a dozen known sun-grazing comets. As of December 2012, we know of 2,500. Why did this number increase? |
| Language | English |
| Access Restriction | Open |
| Rights License | Public Domain |
| Subject Keyword | k-12 homeschool Comets homeschooling home school parents educational videos k12 preK-12 Astronomy Solar System Science |
| Content Type | Video |
| Educational Role | Student Teacher |
| Educational Use | Self Learning |
| Time Required | PT2M37S |
| Education Level | Class VIII Class XI Class IX Class XII Class VII Class X |
| Resource Type | Broadcast |
| Subject | Comets |