Elon Musk’s company will wait until next week to test its system that aims to provide high-speed internet all over the world.

For the second time in two nights, SpaceX, the private rocket company founded by Elon Musk, said on Thursday evening it would postpone the launch of dozens of satellites.Wednesday’s attempt to launch Starlink, the company’s bid to get into the space-based internet business, was postponed because of strong winds high in Earth’s atmosphere. The Thursday delay, SpaceX said on Twitter, was related to checking the systems it planned to launch. The company could try again next week.

Mr. Musk’s goal is to one day send people to Mars, an exorbitantly expensive venture. And SpaceX, for all its successes, is still a fairly small company, with thin profit margins on its rocket launches. To make enough money for interplanetary journeys, the company hopes its Starlink satellites would provide high-speed internet access all over the world.

“This would provide connectivity to people who either don’t have any connectivity today or where it’s extremely expensive and unreliable,” Mr. Musk said during a Wednesday news conference.