Das Jahr 2025 ist 50 Jahre seit dem Start der beiden Raumschiffe, drei Wochen voneinander entfernt.
(Der Artikel wurde von einem atmosphärischen Wissenschaftler geschrieben, der in den 70ern an den Wikingermissionen gearbeitet hat)
https://theconversation.com/50-years-ago-nasa-sent-2-spacecraft-to-search-for-life-on-mars-the-viking-missions-findings-are-still-discussed-today-262186
1 Kommentar
Here’s the thing with biosignatures. If the data from an observation can be produced either biologically or abiologically, you should assume it’s abiological. It’s too big of a discovery to say it’s biological unless you can absolutely rule out an abiological process.
And *especially* with potential biosignatures on exoplanets, just because we don’t know an abiological way to obtain that biosignature doesn’t mean there isn’t one. Geology is hard. Atmospheric science is hard. Chemistry is hard. Astronomy is hard. We don’t know all the different kinds of funky planet/atmospheric concentrations and geological processes and chemistry that can happen to say that a specific claimed „biosignature“ can’t be produced abiologically.
Just because an observation is consistent with life doesn’t mean life produced it.