Physicists have chased a unified description of nature for more than a century, yet quantum theory and gravity have ...

What happens when the United States tries to build a missile shield so ambitious that Russia and China start dreaming up weapons that no defense can stop?

Yale Law grad who worked in the Reagan administration as an assistant attorney general. Switched to the State Department in the first Bush administration as assistant secretary for international ...

Determining if heavier objects really fall faster than lighter ones or if gravity affects them equally.

Fiction, nonfiction, memoir, history, essays, language, art history, architecture, climate—we’ve got you covered with this ...