er biological experiments (1976)Allan Hills 77005 (1977)Allan Hills 84001 (1984)Yamato 000593 (2000)CI1 fossils (2011)Signals of interestMisidentifiedCP 1919 (misidentified pulsar)CTA-102 (misidentified quasar)StarsKIC 8462852 (unusual light fluctuations)EPIC 204278916 (unusual light fluctuations)VVV-WIT-07 (unusual light fluctuations)HD 164595 signal (unknown origin)OtherSHGb02+14a (radio source)Wow! signal (inconclusive)Fast radio burst (unknown origin)BLC1 (radio signal)Life in the UniverseEarliest known life formsPlanetary habitability in the Solar SystemLife on VenusLife on MarsLife on TitanPlanetaryhabitabilityCatalog of Nearby Habitable SystemsCircumstellar habitable zoneEarth analogExtraterrestrial liquid waterGalactic habitable zoneHabitability of binary star systemsHabitability of natural satellitesHabitability of neutron star systemsHabitability of K-type main-sequence star systemsHabitability of red dwarf systemsHabitability of yellow dwar