ChronoZoom is an open source, community collaboration between UC Berkeley, Moscow State University, and Microsoft Research that aims to cover - literally - life, the universe and everything, from the Big Bang to the present day. Visually stunning, if potentially overwhelming, Chronozoom works dynamically, based as it is on zoomable interactive timelines, to create a visual sense of the immensity of time - 13.7 billion years of "big history" - in a way that would be impossible in a static timeline. Still in its early stages at present, the site is limited to timelines and exhibits, but as geologist Walter Alvarez explains in the introductory video, further content will be developed in the future. Given the project’s ambitions, it is unsurprising that navigating the site can prove initially somewhat disorienting, but patient users will be rewarded with a powerful sense of the true scale of time over cosmic, geological, biological and social periods.