Channel was here: https://www.youtube.com/hubblespacetelescope

Wayback machine snapshot: https://web.archive.org/web/20250000000000*/https://www.youtube.com/hubblespacetelescope

Related article: https://spacenews.com/hubble-budget-cuts-could-impact-science-and-mission-operations/

Looks like some content may be re-released on https://www.youtube.com/@spacetelescopevision

Seems like it wouldn’t have cost much to keep the original channel up, though.