(Brownsville, TX) -- Billionaire tech guru Elon Musk is building a huge rocket prototype in south Texas. Musk is the CEO of SpaceX, a private aerospace firm that launched more than 20 space missions this year.
Musk tweeted an image of a rocket called Starship, now under construction at the company's location near Brownsville. SpaceX says Starship will be bigger and more powerful than the Saturn 5 that launched the lunar Apollo missions.
The company says Starship will be used for international flights and for trips to the moon and Mars.