Hardest Lagrange Point, Voyagers' Realistic Lifetime, Goals for Telescopes | Q&A 387

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Can we find a use for the L3 Lagrange point? How long do the Voyagers have left? Which goals do we have for telescopes that are being built? And in Q&A+, arguably the most important technology we can focus on?

00:00 Start
00:25 [@SantiagoT75] How could we use the L3 Lagrange point?
03:56 [@rms492] How long will the Voyagers last?
04:43 [@billionsandbillionsofstars] How long will the Golden Records last?
08:05 [@YngviFreyr] Can we detect intergalactic visitors, not just interstellar ones?
12:18 [@JoaoDiasDooom] What are the specific goals for all the biggest telescopes built or being built?
15:42 [@briscoerob] Is getting platinum off asteroids a top priority?

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