Amazon.com Inc.’s first batch of production satellites launched toward low-Earth orbit on Monday, the biggest step to date in the company’s effort to establish a business broadcasting internet connectivity from space.

Amazon's first internet satellites are in orbit. United Launch Alliance's Atlas rocket blasted off Monday from Florida, carrying 27 of Amazon's Project Kuiper satellites.

Tonight's launch marked the first-ever liftoff for this particular Falcon 9's first stage. That's a rarity for SpaceX, which is known for its rocket reuse; one of the company's Falcon 9 boosters has 27 flights under its belt.