Tate Modern hosts a major exhibition of Ana Mendieta, Constable turns 250 and the accidental beauty captured by unattended online cameras – all in your weekly dispatch
Ana Mendieta
Neolithic monuments inspired this Cuban-born American artist to create her ephemeral, raw, poetic works that embrace nature in a truly original way.
• Tate Modern, London, from 15 July to 17 January

