Keeping satellites from going bump in the night

On September 2, the European Space Agency’s operations account announced that ESA’s Aeolus spacecraft, an Earth science mission launched a year earlier, had performed a collision avoidance maneuver earlier that day to avoid a SpaceX Starlink satellite. This was, ESA said, the first such maneuver to avoid a “megaconstellation” satellite. The maneuver was a success—Aeolus raised its orbit slightly to avoid the Starlink satellite—but the discussion was only starting. More

(Source: The Space Review - Sep 24)