EntityQ755286· pop 29· linked from 349 articlesVega programSign in to saveUSSR space program with the first balloon flight on Venus, in 1985ConnectionsHalley's CometEntityVestaEntitySoviet UnionConceptultraviolet radiationEntitytransit of VenusEntitylist of missions to VenusEntitylist of craters on VenusEntitylist of montes on VenusEntityLada TerraEntitylist of coronae on VenusEntityUnited StatesCountryFranceCountryPolandCountryAustriaCountryEarthConceptBulgariaCountryMoonConceptHungaryCountryKazakhstanCountryRussianEntityCategoriesAustria–Soviet Union relationsBulgaria–Soviet Union relationsCzechoslovakia–Soviet Union relationsFrance–Soviet Union relationsGermany–Soviet Union relationsHungary–Soviet Union relationsMissions to Halley's CometPoland–Soviet Union relationsVega program