Drawing of a caravan stop on the Silk Road (© Eugene Flandin/Alamy)

Following the Afghan Silk Road with satellites

Archaeologist Emily Boak used aerial and satellite imagery to discover hundreds of unrecorded Afghan caravan stops along the Silk Road.
Color illustration of White House (Shutterstock)

Test your knowledge of U.S. presidents [quiz]

Every February, Americans honor their presidents. Take our quiz to see how much you know about U.S. presidents. Share your results!
People eating at tables in large room with airplane and helicopter on display (© Bob Riha Jr/WireImage/Getty Images)

Presidential libraries are more than books and paper

Modern U.S. presidents' records and artifacts are preserved for public access in presidential libraries. But these aren't your average libraries.
Mobile phone showing blue Twitter logo on screen (© Shutterstock)

Making a time capsule from the web

The Library of Congress is collecting blog posts, news reporting, public records, social media — what appears on the web — into a public archive.
President Trump at lectern with Vice President Pence and Paul Ryan applauding behind him (© Win McNamee/Bloomberg/Getty Images)

President Trump projects U.S. strength at home and abroad

In his State of the Union speech, President Trump says the U.S. has stronger friendships with its allies and won't tolerate threats to its security.
Illustration of a hand holding a computer mouse crashing through a roadblock (State Dept./Doug Thompson)

Censor the internet? Bad idea.

Censoring the internet censors free speech. Political dissent, strong language and even offensive speech are part of a strong democracy.
Person giving speech in large, crowded room (© AP Images)

Who sits where during a State of the Union speech? [infographic]

The three branches of the U.S. government get together each year to hear the president give the State of the Union address. Who comes and where do they sit?
President Trump at lectern and smiling, two officials applauding behind him (© AP Images)

The president’s State of the Union speech: Why it matters

Millions of people around the world are expected to watch President Trump’s State of the Union address. Learn why that speech gets attention every year.
Jerome Powell (© T.J. Kirkpatrick/Bloomberg/Getty Images)

Meet Jerome Powell, America’s new top banker

President Trump says Jerome Powell, his choice for chair of the Federal Reserve, will help the U.S. build on its recent economic progress.