As an aspiring astrophysicist, I know a thing or two about space. I also know that space is super cool and almost everyone I've ever talked to wants to learn more about it. This is a technique of studying I do with friends and family, as by teaching something that I know, if better cements that concept into my brain.
Fair warning: I don't know everything, and I will let you know if what you're asking is out of my grasp. But I'm pretty good, so fire away.
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Dude, I LOVE space. I wish I knew you in person. I'd be the guy that asks you so many questions, you'd stop hanging out with me. Lol. I know this is subjective, but how confident are you that other life exists outside of earth? Maybe offer a percentage chance? And PLEASE explain why :)