only at optometrists that carry Silhouette.
They are titanium and hingeless and even used in space! [https://spaceref.com/press-release/silhouette-optical-awarded-certified-space-technologytm-status/](https://spaceref.com/press-release/silhouette-optical-awarded-certified-space-technologytm-status/) (The only difference is theirs have heavy tinting on the lenses, but they use the stock
from the poles) is now pointing directly toward us. That makes it a "blazar". https://spaceref.com/science-and-exploration/a-galaxy-changes-its-classification-as-a-relativistic-jet-changes-direction/
alistair_c00kie t1_j11eirn wrote
Reply to comment by Uriel_dArc_Angel in Can anybody enlighten me what are these (satellite/rocket/missile)? by [deleted]
spaceref.com/space-commerce/rocket-lab-reschedules-first-u-s-launch-for-january-2023-provides-update-on-effect-to-prior-q4-guidance/