/sci/ - Science & Math

>>15174713
>>15174717
This is what Hubble's ass looks like. If you think the mirror just miraculously never got hit you are delusional. A little tube isn't going to save it either. The reason they were never reported is that Hubble doesn't have the wavefront sensing mode that JWST needs for alignment. There is no way to detect damage, but it almost certainly happened. Debris in LEO is much worse.

>>14681763
Micrometeorites are irrelevant in LEO because almost all the impacts are debris from launches and satellites. The debris situation is far, far worse in LEO.

If you think the back looks like this and the mirror just happened to avoid never being hit then you don't understand statistics. The only reason people aren't crying about it is because HST has no wavefront sensing like JWST so it can't see damage.

>>14681913
L2 is dynamically unstable retard. Spacecraft need fuel to stay there.

>>14681736
It won't have downtime. Neither does Hubble. It's either slewing, setting up, making calibrations or exposing.

>>14562115
And if you think Hubble never suffered impacts because it had a tube then you're delusional. The debris environment is way, way worse in LEO. There is no way the back of it looks like this and the mirror just happened to never receive a hit. It's just that they don't have pupil imaging and so have no way to see impacts.

>>14556346
It has certainly happened to HST, pic related. If you think the mirror just got super lucky and never received a hit then you're retarded.

>>14556442
There's no way that nothing ever came down the optical axis.