The final version of the Declaration of Independence begins with the phrase: “The unanimous Declaration of the thirteen united States of America.” Thomas Jefferson, who wrote the document in June 1776 ...

When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a landscape with incredible geology. She hears a lot of the same suggestions: ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust ...

In military terms, Ukraine is indeed outnumbered: less so in manpower (it has some 900,000 regular troops to Russia’s 1.3m) ...