Active stars like Proxima Centauri may produce false positives for exoplanet biosignatures. Life not needed to produce atmospheric O2 & O3.
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There's probably no life on Proxima b. But's let's send a probe and take a look there anyway.
Need new tech! At New Horizons's speed, it would take about 54,400 years to get there!
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I know, but some fairly feasable technologies have been proposed. Confident I'll live to witness our first interstellar encounter.
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