SpaceX is set to launch 27 of its Starlink internet satellites Sunday (Jan. 19), just two days after a test flight of its Starship megarocket ended in an explosion.

The Starship system is designed to be fully reusable and aims to become a new method of flying cargo and people beyond Earth. The rocket is also critical to NASA's plan to return astronauts to the moon. SpaceX won a multibillion-dollar contract from the agency to use Starship as a crewed lunar lander as part of NASA's Artemis moon program..