According to correspondence obtained by CNBC, Musk is raising $750 million in a new round of funding for his company, which is valued at $137 billion.
It was reported last month that the company was allowing insiders to sell shares at a price that would have put the company's valuation at more than $150 billion. The company raised more than $2 billion in 2022, including a $250 million round in July, and was valued at $127 billion during an equity round in May.
The e-mail said that a16z would likely lead the new funding round. The earliest investors in the company were the Founders Fund and others.
A16z was a part of Musk's $44 billion takeover of the social networking site.
The companies did not reply to the request for comment.
The Starship program, which is part of NASA's effort to bring astronauts back to the moon, was delayed last year.
The company's satellite internet service, Starlink, exceeded 1 million subscribers and provided a lifeline to users inUkraine who suffered infrastructure disruptions after Russia's invasion In a single year, the company launched 60 rockets using its Falcon program.
At the company's Starbase facility in Boca Chica, Texas, the company is continuing development of its launch vehicles. It's not clear when the company will move to the next step of the program, which involves an Orbital launch test of these larger vehicles.
NASA Administrator Bill Nelson asked Shotwell if Musk's "distraction" as the new owner and CEO of Twitter would affect the company's work with the agency.
The International Space Station has an astronauts and two cosmonauts on it, and NASA is considering whether or not it can be saved with the help of a private company. An investigation is underway to determine if the capsule can safely return the crew home or if they will need to use emergency measures.