After Neil Armstrong took a “giant leap for mankind” on the Moon nearly 50 years ago and collected rocks and soil along the way, Richard Nixon presented lunar souvenirs to every nation—135, at the time.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2016/583d73c61a5b8.jpg)
Source:
https://phys.org/news/2019-06-moon-hunter-quest-track-apollo.html