Rachel goes back to the ocean to talk about bizarre, small, upside-down, solar powered jellyfish.

Kirk goes the exact opposite direction and takes us to space with a primer on the Heliosphere. It's all just so he can tell us about some strange research that came out that suggests the sun's heliosphere collapsing 2 million years ago may have caused the last ice age or even the evolution of modern humans.

So, wide berth in topics this week but ultimately they both come back to the sun.

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