The Arecibo Observatory may be no longer, but its thoughtful message continues to inspire astronomers and scholars worldwide.

Ken Burns: For me, everything was new. For example, I knew what he painted ... about the relationship between the body and our earth. Ken Burns: Shot up close like that, you can also see his ...

Toxic smog engulfed much of northern India on Monday and pollution readings in New Delhi hit their highest of this pre-winter ...