Use this map to explore the history of life through geologic time in North America. Use the arrows or click and drag to navigate the map. Click on the map labels or on the geologic time scale for details. Or use the menus below to narrow your search.
More beautiful symmetry. In black and red, the Atlantic ocean floor is youngest at the center, and oldest (light blue) along the edges of the continents. The Atlantic is opening at about the same rate your fingernails grow. The image is by NOAA.
43,000 Galaxies on a Map / the most complete map of our local universe to date. It took more that ten years to create, has 43,000 galaxies and extends out 380 million light years from the earth. The 3D coordinates of each galaxy was recorded so the raw data could potentially be used to build a realistic 3D model of the universe.