URL | Priority | Change frequency | Last modified (GMT) |
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https://www.spaceanswers.com/space-exploration/watch-the-ridiculously-fast-x-15-rocket-plane-take-flight/ | 20% | Hourly | 2012-09-05 15:15 |
https://www.spaceanswers.com/deep-space/whats-inside-a-black-hole/ | 20% | Hourly | 2012-09-04 10:55 |