Neither news nor channels are deleted from memento.epfl.ch database.
Channels with the last published event older than 24 months are deactivated. Inactive channels no longer appear in the list of available channels for a WordPress page (EPFL memento block).
However, they remain visible to their editors / managers, in edit mode.
Revive an inactive channel
To revive an inactive channel, simply re-broadcast an annoucement to it.
If the channel no longer has a manager, request access to 1234@epfl.ch .