scalloped margin dome
...that although NASA originally thought that there was only one scalloped margin dome on the planet Venus , they have since discovered hundreds of them?
...that although <a href="./NASA" id="mw0w" rel="mw:WikiLink" title="NASA">NASA</a> originally thought that there was only one <b id="mw1A"><a href="./Scalloped_margin_dome" id="mw1Q" rel="mw:WikiLink" title="Scalloped margin dome">scalloped margin dome</a></b> on the planet <a href="./Venus" id="mw1g" rel="mw:WikiLink" title="Venus">Venus</a> <i id="mw1w">(pictured)</i>, they have since discovered hundreds of them?