The hopes for a hypothetical follow-up—dubbed R9 by fans, because it’d be her ninth such offering—have gone through the usual cycles in that time: Too-early speculation, shading into genuine hopes, ...

Elon Musk Steps Up Efforts to Cull Federal Work Force Mr. Musk said federal workers must summarize their accomplishments for the week or be forced to leave, borrowing a tactic he used at his ...