early tropes of adventures in Venusian tropics gave way to more realistic stories
... that as the reality of Venus's harsh surface conditions became known from the mid-20th century, the early tropes of adventures in Venusian tropics gave way to more realistic stories?
... that as the reality of <a href="./Venus" id="mwAS4" rel="mw:WikiLink" title="Venus">Venus</a>'s harsh surface conditions became known from the mid-20th century, the <b id="mwAS8"><a href="./Venus_in_fiction" id="mwATA" rel="mw:WikiLink" title="Venus in fiction">early tropes of adventures in Venusian tropics gave way to more realistic stories</a></b>?