Both the Hubble Telescope and TESS exoplanet hunter went into safe mode on April 23. Hubble is back on, but TESS remains off.

NASA's Hubble Telescope is back in action — but its TESS exoplanet hunter may now be in trouble

Source: space
Source Link: https://www.space.com/hubble-space-telescope-tess-exoplanet-hunter-safe-mode