Assertion: comet's atmosphere | /r/MadeOf | large amount of methane
Facets:
value: venus –
type: LOCATION
value: according to data
type: OTHER
value: from 60 km
type: LOCATION
Source sentences:
text: Venus – the atmosphere contains a large amount of methane from 60 km (37 mi) to the surface according to data collected by the Pioneer Venus Large Probe Neutral Mass Spectrometer