For those who did report seeing these LF , how often they saw them varied across reports .
While these LF were reported by many astronauts , not all astronauts have experienced them on their space missions , even if they have gone on multiple missions .
For those who did report seeing these LF , how often astronauts saw astronauts varied across reports .
While these LF were reported by many astronauts , not all astronauts have experienced them on their space missions , even if they have gone on multiple missions .