48 years ago, on February 22nd 1978, the first GPS satellite was launched into orbit from Vandenberg Air Force Base in California. GPS had been conceived of years earlier by U.S. Air Force officer Bradley Parkinson, a native Minnesotan. 41 years after that historic launch, another Great Lake State native (this one from Michigan), @FoundTheSpace would co-found @XonaSpace, a company looking to carry Bradley Parkinson's torch into the future. Two days ago, Xona launched six of its satellites into orbit, enabling Pulsar, a commercial positioning, navigation and timing, or PNT, service designed to complement or back up GPS. Pulsar will run where GPS walked: a service that is less susceptible to spoofing and jamming, that can work indoors, and one that can provide centimeter-level accuracy. GPS changed our world, and Pulsar is poised to change it again. Today, Xona is announcing their $250M Series D round, led by legendary Midas List investor (and SpaceX board member) @FutureJurvetson of @VenturesVc with participation from @chadbyers and too many other amazing investors to name. Congrats to Brian Manning, Tyler Reid, Adrien Perkins, Christina Youn and the entire Xona team pictured below, whose names adorn one of those six satellites now orbiting the Earth on hitting these major milestones. This has been an awesome year of execution! Your work will touch the lives of billions of people and @MaCVentureCap could not be more proud to be supporting you all.