div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=poster1-front-lunar-and-planetary-institute-by-1-to-2-billion-years-ago-volcanismhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Poster1-front - Lunar and Planetary Institute · By 1 to 2 billion years ago Volcanism on the Moon eSSentiallY stopped The Moons Interior had cooled and magma no longer made its loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220526115f0725c77e708231d41b8ad9html5thumbnails1jpg width=140 height=200 divdiv