Federal and state officials have declared martial law 68 times in the past, such as in Hawaii following the Japanese attack on Pearl Harbor.

A growing share of Americans say there are important differences between the Republican and Democratic parties, according to a new CNN/SSRS poll. The May survey, released on Sunday, shows 81 percen… ...

The modern military has a slew of weapons to choose from, not the least of which are ballistic and hypersonic missiles. What's the difference between them?

What Are the Differences Between Arabica and Robusta Coffee Beans? Robusta is double the caffeine of arabica, for one.

The results of an international study shed new light the underlying biological mechanisms which cause differences in health risks, symptoms and outcomes between males and females.

Students with disabilities in the United States are guaranteed the right to a free and appropriate public education. What sets IEPs and 504 plans apart?

A lunar eclipse occurs when Earth gets between the sun and the moon, causing Earth's shadow to be projected onto the lunar surface. By definition, this can happen only during a full moon.