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Comet 67P/Churyumov-Gerasimenko and Cometary Biology

Wickramasinghe, Chandra

The long-awaited rendezvous of ROSETTA with its target Comet 67P/Churyumov-Gerasimenko is expected at best to give indirect evidence for cometary panspermia and the presence of microorganisms in comets. Prodigious out gasing of water vapour observed at large heliocentric distances, low albedo and a terrain of alternating rough and smooth areas alr…

MAVEN turns to COMET Siding Spring

Wickramasinghe, Chandra; Smith, William E.

2014-10-14 : Just 5 days to go to Mars Obiter MAVEN turning from MARS to observe Comet Siding Spring. A short summary video is well worth watching http://youtu.be/AwMjoy_02Ic It should be noted that unlike short-period Comets Halley and 67P/G-C (Rosetta target) which are short period Comets (75 years and 7 years respectively), Comet Siding Spring …