Astronomers lay bare the Milky Way’s biggest secrets
When Lewis and Clark started exploring the West, they didn’t know much about what lay beyond St. Louis. Neither, at first, did astronomers know much about cosmic realms beyond Uranus.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.