Rocket Report: A mysterious explosion in China; Firefly tests new engine

News Snapshot:

Welcome to Edition 6.21 of the Rocket Report! Someone is always watching, and it's more difficult than ever to hide bad news. This is one of my mantras as a reporter who will always come down on the side of transparency. We've seen space companies and government agencies in the United States try to downplay setbacks, which, let's face it, are inevitable in the space business. In China, it looks like a recent test-firing of a rocket motor didn't go well. Unsurprisingly, Chinese officials haven't said a thing. As always, we welcome reader submissions, and if you don't want to...