Tag: Hubble telescope

Hubblesite: Advanced Camera for Surveys Suspends Operations (HT Dave Ayers) Jan. 29, 2007 — Hubble’s Advanced Camera for Surveys (ACS), the instrument whose work has dominated the telescope’s observation program, is currently not operating. On Jan. 27, Hubble went into a self-protective hibernation called “safe mode.” This happens whenever Hubble’s computers measure a serious anomaly…