Swedish King Gustav II unveiled a battleship of epic proportions to an awed public. "Vasa" was supposed to signify the ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

USA TODAY interviewed experts about what is happening in the world, and how it should be described. Here’s what they said.

But after a flurry of concern, Europe’s major powers rolled over and went back to sleep. Moscow’s full-scale invasion of the ...

Volunteers cleaning Poland’s Krzna River uncover well-preserved 6-pound 17th-century cannonball, sparking intrigue about its origins, Lublin officials said.

Volunteers cleaning Poland’s Krzna River uncover well-preserved 6-pound 17th-century cannonball, sparking intrigue about its origins, Lublin officials said.

Volunteers cleaning Poland’s Krzna River uncover well-preserved 6-pound 17th-century cannonball, sparking intrigue about its origins, Lublin officials said.

Volunteers cleaning Poland’s Krzna River uncover well-preserved 6-pound 17th-century cannonball, sparking intrigue about its origins, Lublin officials said.