TYB
Exercise of NASA asteroid from late April conference-early May 2021 to hit Earth October 20, 2021
https://cneos.jpl.nasa.gov/pd/cs/pdc21/pdc21_day2_briefing1.pdf
*Reminder that "Dark Winter" was an exercise, yet it happened… next incoming asteroid October 25, 2021, and its not just the big 'rocks' its what is trailing them.