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S02E46: Comets, Space Health, and the Mysteries of the Three-Body Problem
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S02E46: Comets, Space Health, and the Mysteries of the Three-Body Problem

S02E46: Comets, Space Health, and the Mysteries of the Three-Body Problem
Astronomy Daily: The Latest Space News
0:00 18:02

In this episode

**Show Notes: Astronomy Daily Podcast with Steve Dunkley and AI Newsreader, Hallie**
*Date:* 25th September 2020
*Episode Highlights:*
1. **Introduction**:
- Steve Dunkley welcomes listeners to another episode of Astronomy Daily.
- Hallie, the AI Newsreader, joins the conversation.
2. **Comet Mishimura**:
- The comet has transitioned from the morning sky to the evening sky.
- Facebook group "Comet Watch" reported binocular sightings after sunset starting September 14th.
- Heavensabove.com noted the comet shining at magnitude +2.4 on September 16th.
- Comet Mishimura was closest to Earth on September 12th and the Sun on September 17th.
- The comet may reappear in late November and December 2023 in the dawn sky.
3. **Space Health Issues**:
- The effects of zero gravity on the brain.
- Risks of cosmic radiation to astronauts.
- NASA's efforts to shield travelers from radiation.
- Importance of exercise and supplements in space.
- Effects of microgravity on the nervous and circulatory systems.
- Psychological challenges of space travel.
4. **SpaceX Starlink Satellites**:
- Launch of another cluster of Starlink satellites.
- FAA's new rule for cleaning space debris from launches.
- Details of the SpaceX launch and the importance of reducing space debris.
5. **Three-Body Problem**:
- A complex puzzle in physics and mathematics.
- Discovery of 12,000 new solutions to the problem.
- Historical context and significance of the problem.
6. **Osiris Rex Mission**:
- Return of the sample packet from the near-earth asteroid Bennu.
- The mission's continuation to study the near-Earth asteroid Apophis.
- Details of the mission's objectives and future plans.
7. **Conclusion**:
- Steve wraps up the episode and mentions other related podcasts and platforms for listeners to explore.
*Links & Resources*:
- [Space Nuts with Andrew Dunkley and Professor Fred Watson](spacenuts.io)
- [Astronomy Daily with Tim Gill](bitesz.com)
- [Space Nuts Facebook Group](#)
*Sign Off:* Steve and Hallie thank listeners and look forward to the next episode.

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