The US Space Force installed a high tech new radar system this week that it says will be able to detect objects the size of baseballs in orbit.

The massive monitoring system, dubbed the Long Range Discrimination Radar (LRDR), is located at the Clear Space Force Base near Fairbanks, Alaska, according to The Anchorage Daily News. The radar is slated to support the US missile defense system and provide reconnaissance data in space.

“Today marks an extremely important milestone for US homeland defense,” US Missile Defense Agency (MDA) director Jon Hill said in a press release yesterday. “The LRDR has finished construction, and we can now begin the testing phase that will lead to the full operational use of this vital system.”