The United States Space Force operates the GPS constellation that we use every day to know where we are. Tomorrow, SpaceX will launch a new GPS III satellite, built by Lockheed Martin, into orbit to expand and upgrade the constellation that was been active since 1978. The launch window opens at 12:09 p.m. and lasts 15 minutes.

Date: Thursday, June 17th, 12:09 p.m. EDT

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