66 million years ago, the sudden extinction of the dinosaurs started the ascent of the mammals, ultimately resulting in humankind's reign on Earth.
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Impact events: January 2017
Calendar
- 18 Sep: Hearing: Developing Core Capabilities for Deep Space Exploration: An Update on NASA’s SLS, Orion, and Exploration Ground Systems
- 18 Sep: NASA Astrobiology Institute Virtual Workshopl: Astrovirology
- 23 Sep: Planetary Science Advisory Committee Meeting
- 26 Sep: Astronomy and Astrophysics Advisory Committee Meeting
- 1 Oct: Heliophysics Advisory Committee Meeting
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