Hemispheres is the sixth studio album by Canadian rock band Rush, released in October 1978 by Anthem Records.
After touring to support the band's previous release, A Farewell to Kings, during which the group gained popularity in the UK, Rush started work on their next album.
As with the band's previous studio album, Hemispheres was recorded at Rockfield Studios in Monmouthshire and Trident Studios in London with longtime engineer and arranger, Terry Brown.
Rush continued its progressive rock sound with the side-long "Cygnus X-1 Book II: Hemispheres" and the nine-minute instrumental "La Villa Strangiato", which was the band's first instrumental piece.