General

NASA has spent years and billions of dollars developing a giant rocket known as the Space Launch System, designed to take astronauts to moon and perhaps farther out into the solar system someday. But the first launch of the rocket — an…

Military experts call hypersonic warheads the next big thing in intercontinental warfare. They see the emerging arms, which can deliver nuclear or conventional munitions, as zipping along at up to five miles a second while zigzagging…

This article is part of the On Tech newsletter. You can sign up here to receive it weekdays.If you’ve wondered recently why prices for e-books seem high, let me tell you why a failure of antitrust law might be (partly) to blame.A government…