Congress gave the lone employee of the United States Space Force quite a grilling this week, but the public still doesn't know much about the new military branch's activities.

During a hearing on Wednesday (March 4), members of the House of Representatives' Committee on Armed Services asked Space Force commander Gen. John Raymond about matters such as launches, reserve forces and future work.

In response, Raymond said that he's building out the Space Force's capabilities and its workforce, bringing in other people to support him.

Committee chairman Adam Smith, D-Washington, said that he agreed with the assessment, voiced repeatedly recently by U.S. military officials, that new thinking is needed to address a growing capability in space weaponry by foreign militaries. But Smith added that he's not sure if an entire new military branch would necessarily address the problem.