Musk likely to face tough questions during SpaceX's first earnings call as a public company

NEW YORK (AP) — Investors in Elon Musk's space company get a chance to question him Tuesday after SpaceX issues its first quarterly earnings since going public.SpaceX shares are down by half from their June peak as investors worry Musk may have oversold them on its future prospects. They're also bracing for volatile trading as some company insiders get the opportunity to sell shares after the expiration of what's known as a lockup provision later in the week.The shares jumped 19% on their first day of trading, making Musk the first-ever trillionaire. The subsequent drop in SpaceX, as well as a decline in the shares of Musk's electric vehicle company Tesla, have knocked his wealth down to $726 billion, according to Forbes.Part visionary engineer, part stock salesman, Musk is likely to be asked about when he expects to finish testing SpaceX's giant Starship rockets that NASA hopes to use to put men on the moon again, his plans for its satellite network and the prospects of putting footba