Live from NPR News in Washington, I'm Ryland Barton.

Ignition.

SpaceX has launched the latest version of its massive starship rocket from South Texas,

a day after it canceled a launch because of mechanical issues.

This starship flight is uncrewed, but a later version could return astronauts to the surface of the moon. The launch

comes as the company prepares an initial public stock offering. SpaceX says Starship is key to

launching more satellites for its Starlink wireless internet network, and it plans to use the rocket

to lift cargo, and eventually, as many as 100 people at a time into orbit, as part of its

goal of colonizing Mars.

Popular prediction markets are under congressional investigation. The House Oversight Committee

is probing Kalshi and Polly Market after multiple reports of military and political insider trading cases.

NPR's Luke Garrett reports.

Prediction markets host billions of dollars worth of bets on sports, politics, and in some

cases war. In April, the DOJ charged a U.S. soldier for making $400,000 using classified

information to bet on the capture of Nicholas Maduro. House Oversight Committee Chair,

James Comer, tells CNBC this case and other reports of insider trading prompted the probe.

We want to not only launch investigations to see how widespread this has been thus far, but also to prove a case that we've got to pass some type of legislation.

Kalshi and Pauley Market have two weeks to turn over their documents on insider trading.

The Commodity Futures Trading Commission regulates prediction markets and their documents on insider trading. The Commodity Futures Trading

Commission regulates prediction markets and does prohibit insider trading, but there's

growing concern that current laws haven't kept up with these new financial exchanges.

Luke Garrett, NPR News, Washington. A bipartisan group of senators is pushing back on delays

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