Frank Stella - RA Courtyard

Frank Stella's Inflated Star and Wooden Star is on display in the Royal Academy's Annenberg Courtyard until 12 May 2015.
Stella's 7 metre high, teak and aluminium sculpture is a recent work (2014) by one of the major artists of the 20th and 21st centuries. Now 79, Stella was, in 1970, the youngest artist ever to be accorded a retrospective by the Museum of Modern Art, New York. A major lifetime retrospective will be held at the Whitney Museum of American Art in the autumn of 2015.

Castellani, Judd, Serra - Dominique Lévy

Frank Stella, Tetuan I, 1964

Local History: Castellani, Judd, Serra is at Dominique Lévy, London (and New York) until 17 January 2015.
How did I miss this? This exhibition opened on 13 October and I have only just picked up on it. An exhibition of early Stella and Judd (possibly my most favourite art of all time) alongside Enrico Castellani (who?). How did I not know about Castellani? I can't find him in any of my books about Minimalism or Judd - yet the press release for this exhibition asserts that Judd regarded [Castellani] as father of the style that came to be known as Minimalism. In fact he seems to be more readily contextualized in relation to Lucio Fontana and Piero Manzoni. Interesting.
Judging by the lists of works both shows look fabulous. 
Read a review by Roberta Smith.
The Stella above and the following works are included in the London exhibition:

Enrico Castellani, Superficie rossa, 1964

Donald Judd, Untitled (88-28 A/B Menziken), 1988

Donald Judd, Untitled, 1977

Frank Stella, Concentric Square, 1961

Frank Stella, Concentric Square, 1961

 The following works are included in the New York exhibition:

Frank Stella, East Broadway Sketch, 1958

Frank Stella, 5 Eldridge Street (Blue Horizon), 1958

Frank Stella, BAFT, 1965

Frank Stella, Ileana Sonnabend, 1963

Donald Judd, Untitled (DSS 41), 1963

Enrico Castellani, Superficie nera, 1959

Enrico Castellani, Superficie rigata bianca e blu, 1963