This thematic selection of recent work from nine established and emerging international sculptors--the eldest born in 1947 and the youngest in 1974--collects the ways they are giving shape to the fleeting, ephemeral, theoretical and difficult-to-explain. From Charles Long's delicate, poetic and personal debris assemblages to Bj rn Dahlem's quirky, elegant models of black holes and Andrea Cohen's styrofoam and packing-peanut networks, their works are...