Question: The David Bowie bootleg "Zion" was recorded during Bowie's this album sessions that Bowie wrote after his breakthrough The Rise and Fall of Ziggy Stardust and the Spiders from what?
Context: "Zion" is a David Bowie bootleg.  It is most commonly said to have been recorded at Trident Studios in January 1973, during Bowie's "Aladdin Sane" sessions. "Lady Stardust" is a song written by David Bowie that appeared on the album "The Rise and Fall of Ziggy Stardust and the Spiders from Mars" (1972).  The song is generally interpreted as alluding to fellow glam rock icon Marc Bolan.  The original demo version was entitled "He Was Alright (A Song for Marc)."  The song was released as a single in 2017 to coincide with the "David Bowie Is" exhibition in Japan. Aladdin Sane is the sixth studio album by English musician David Bowie, released by RCA Records on 13 April 1973.  The follow-up to his breakthrough "The Rise and Fall of Ziggy Stardust and the Spiders from Mars", it was the first album he wrote and released from a position of stardom. The Ziggy Stardust Tour was a concert tour by David Bowie in United Kingdom, North America, and Japan in 1972–73, to promote the studio albums "The Rise and Fall of Ziggy Stardust and the Spiders from Mars" and "Aladdin Sane". Ziggy Stardust: The Motion Picture is a live album by David Bowie, corresponding to the film of the same name.  The music was recorded at the Hammersmith Odeon in London on 3   1973 (1973--) , although the album was not issued by RCA Records until 1983.  Prior to that it had existed in bootleg form, notably "His Masters Voice – Bowie and the Spiders From Mars' Last Stand". "Ziggy Stardust" is a song written and recorded by David Bowie for his 1972 concept album "The Rise and Fall of Ziggy Stardust and the Spiders from Mars".  The song describes Bowie's alter ego Ziggy Stardust, a rock star who acts as a messenger for extraterrestrial beings.  In 2010 the song ranked at No. 282 on "Rolling Stone" Magazine's list of "The 500 Greatest Songs of All Time".  The song is one of four of Bowie's songs included in The Rock and Roll Hall of Fame's 500 Songs that Shaped Rock and Roll. "Moonage Daydream" is a song written by David Bowie in 1971, first released as a single with the band Arnold Corns.  A re-recorded version, featuring Bowie and his band The Spiders from Mars, was released in 1972 on "The Rise and Fall of Ziggy Stardust and the Spiders from Mars". "Aladdin Sane (1913–1938–197?)"  is a song by David Bowie, the title track from his 1973 album "Aladdin Sane".  Described by biographer David Buckley as the album's "pivotal" song, it saw Bowie moving into more experimental musical styles following the success of his breakthrough glam rock release "The Rise and Fall of Ziggy Stardust and the Spiders from Mars" in 1972. "Rock 'n' Roll Suicide" is a song by David Bowie, originally released as the closing track on the album "The Rise and Fall of Ziggy Stardust and the Spiders from Mars" in June 1972.  It detailed Ziggy's final collapse as an old, washed-up rock star and, as such, was also the closing number of the Ziggy Stardust live show.  In April 1974 RCA issued it as a single. Ziggy Stardust and the Spiders from Mars (sometimes called Bowie 1973) is a 1973 documentary and concert film by D. A. Pennebaker.  It features David Bowie and his backing group The Spiders from Mars performing at the Hammersmith Odeon in London on 3 July 1973.  At this show, Bowie made the sudden surprise announcement that the show would be "the last show that we'll ever do", later understood to mean that he was retiring his Ziggy Stardust persona.
Answer: Mars