News for hackers. Stuff that matters.

A comment on When a Telescope Is a National-Security Risk.

Re:When a Telescope Is a National-Security Risk by sinuhe69 on Monday December 02, 2024 @11:07PM (#42303002)
A telescope that able to see billion light years away can also see satellites in close earth orbits? How incredible is that! How can it shift and change its focus so dramatically? Would not a flyby satellite cover the entire view field of the telescope?
[ Parent | on HN ]
Re:When a Telescope Is a National-Security Risk by adgjlsfhk1 on Tuesday December 03, 2024 @12:27AM (#42303275)
focus isn't an issue because they're both (basically) at infinity. fov isn't an issue because a satellite is much smaller than a galaxy
[ Parent | on HN ]