When Artemis II blasts off for its lunar flyby, its powerful SLS rocket will include some "heritage hardware." The core engines are mostly recycled space shuttle engines, along with some reused ...

One hundred years ago yesterday, Robert H. Goddard ignited a small rocket fueled by gasoline and liquid oxygen on a frozen farm in Auburn, Massachusetts. That flight lasted roughly 2.5 seconds. Today, ...

Jeff Thornburg helped turn a government research project into SpaceX’s most powerful rocket engine. Now, he’s trying to do the same thing at his startup Portal Space Systems, which is taking an idea ...