https://arstechnica.com/information-technology/2019/10/elon-musk-sends-tweet-via-spacexs-starlink-satellite-broadband/

SpaceX's Starlink division is on track to offer satellite-broadband service in the United States in mid-2020, a company official said today. Meanwhile, SpaceX CEO Elon Musk posted two tweets that show he's testing the broadband service.

"Sending this tweet through space via Starlink satellite," Musk wrote. Two minutes later, Musk sent a followup tweet that said, "Whoa, it worked!!"