One hundred years ago, Robert Goddard fired the first modern rocket. The launch, on what is now a golf course in Auburn, Massachusetts, paved the way for space exploration and much more.

Nevertheless, this rocket, named “Nell,” represented a historic achievement that would help launch the modern age of ...

Space technology and cosmic objects can be hard to comprehend because their scale is so enormous. By comparing rockets, asteroids, and the International Space Station to familiar landmarks on Earth, ...