The background animation starts with a black background that transitions the Giant Magellan Telescope's enclosure doors from their closed state, opening up to show its interior, with the telescope mount front and center against the Atacama Desert background.
As you scroll further, the animation dives into a primary mirror, taking us to a view of the night sky—slowly zooming into it before animating further to show a planetary system with a gas giant on the left, a star in the center, and an Earth-like planet on the right that takes center stage as the page is scrolled down.
The planet is rapidly zoomed out when scrolled further to show an animated section of the night sky, with multiple galaxies visible. The galaxies are moved out of view to show a colorful gas cloud before zooming back out of the Giant Magellan Telescope's primary mirror. The telescope's whole structure (the Enclosure) is now visible face-on.