This artist diagram shows the Smith Cloud as it arcs out of the plane of our Milky Way galaxy, then returning like a boomerang. Hubble Telescope measurements that it came out of a region near the edge of the galaxy disk of stars 70 million years ago
This artist diagram shows the Smith Cloud as it arcs out of the plane of our Milky Way galaxy, then returning like a boomerang. Hubble Telescope measurements that it came out of a region near the edge of the galaxy disk of stars 70 million years ago