But a shadow forms when an opaque, or non-transparent, object blocks light from passing through and reaching a surface on the other side. Light travels in a straight line – that’s why shadows ...

Groundhog Day is this weekend. Here's everything you need to know about the tradition and how to see the all-knowing ...

A photo supposedly showing the "atomic shadow" of a human and a ladder that was created when the U.S. dropped atomic bombs above Japan at the end of World War II has been frequently shared online ...

But what about an institution that looks like a bank and acts like a bank? Often it is not a bank—it is a shadow bank.­ Shadow banking, in fact, symbolizes one of the many failings of the financial ...