![PBS Space Time](https://image.tmdb.org/t/p/w300/xDpNedwxXpE8Ku4x4QgGj7n38hq.jpg)
PBS Space Time - Season 2019 Episode 28
Earth’s magnetic field protects us from deadly space radiation. What if it were drastically weakened, as a precursor to flipping upside down? I mean, it has before … many, many times..
- Seánra: Documentary, Talk
- Stiúideo: YouTube
- Eochairfhocal: astrophysics, science and technology
- Caitheadh: Matthew O’Dowd