Watch Chris Hayes and Neil deGrasse Tyson Geek Out Hard on Science

If you wanted to spend your Friday night watching two very smart guys get seriously wonky about the biggest scientific mysteries of the universe, all you needed to do is tune into the last few minutes of MSNBC’s All In with Chris Hayes. Cosmos host Neil deGrasse Tyson joined Chris Hayes to share his thoughts about the scientific advancements he thinks will be more profound in the decades to come.

The two men discussed “dark energy,” the possibility of organic life on Mars and the probability that somewhere out there aliens are watching The Honeymooners. Hayes promised more of their interview on Monday’s show, including discussions about climate change and creationism, about which we know Tyson has some very strong opinions, so you’ll want to check back in next week for our coverage of that.

Watch the full segment below, via MSNBC:

[Photo via screengrab]

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