70 years of the interstate: How the US highway system built the America we know

Seventy years ago, on June 29, 1956, President Eisenhower signed the Federal-Aid Highway Act of 1956, aka the National ...

This mysterious radio signal has puzzled astronomers for nearly 50 years

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Was the 'Wow!’ signal a message from aliens?

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...
Arizona Daily Star

Project Blue would face tougher rules in Marana than Tucson

With Tucson out of the picture for the Project Blue data-center complex, Marana has emerged as a possible prospect for a replacement location. Not only is the town of 62,000 people Pima County’s ...
The New Yorker

American Idols

We asked a range of luminaries who their favorite American is. The answers included scientists, playwrights, pop stars, ...