Instead, they saw a train of SpaceX satellites crossing the night sky, a worrying sign of what might be to come for astronomy. "We put two and two together and it was like oh yeah, it’s the train of all the Starlink satellites." Last week, SpaceX launched its second batch of 60 Starlink satellites, after an inaugural launch in May this year. "The huge amount of Starlink satellites crossed our skies tonight at [CTIO]," Clarae Martínez-Vázquez, Johnson's co-astronomer, wrote on Twitter. In the dead of night, the Starlink satellites are not visible as they are shrouded in Earth’s shadow.

Source: Forbes November 18, 2019 23:48 UTC