solar eclipse. It is considered one of the first (possibly the first) Dark ambient albums. Eduard Artemyev has made space-themed music, for example for a space film Solaris (1972), although his best known and successfully covered space-themed sounding piece might be the theme song for non-space film Siberiade (1979). In 1973, Montrose released "Space Station #5" as a single from their self-titled debut album. The song was covered by Iron Maiden in 1992. For Montrose's followup album in 1974, Paper Money, they recorded "Spaceage Sacrifice" and the instrumental "Starliner". Montrose's first lead singer, Sammy Hagar, went on to record the title track of his album Marching to Mars, which was released in 1997. In 1975, the song "'39" was released on the album A Night at the Opera by Queen. The song relates the voyage of 20 volunteers to another star system. While the volunteers perceive the trip as being only a year, 100 years pass on Earth as a consequence of time dilation as described by Einstein's theory of special relativity, and, consequently, return to find their loved ones either no longer alive or of advanced age. The song was written and sung by Brian May, who went on to complete his PhD in astrophysics in 2008, with backing vocals sung by Freddie Mercury and Roger Taylor. The Japanese musician Isao Tomita has produced many albums with space-based themes, such as The Planets (1976), his version of Holst's suite; Kosmos (1978); Bermuda Triangle (1979); Dawn Chorus (Canon of the Three Stars) (1984); Space Walk – Impressions Of An Astronaut (compilation, 1984); Mind of the Universe – Live at Linz (1985); Back to the Earth – Live in New York (1988); and Nasca Fantasy (supporting Kodo, 1994). The Vangelis album Albedo 0.39 (1976) is entirely devoted to space, while a segment of Heaven and Hell (1975) was used as the theme to the PBS television series Cosmos by Carl Sagan. His work Mythodea: Music for NASA's Mars Odyssey Mission is reflective of his interest in space exploration. Jean-Michel Jarre's 1986 album Rendez-Vous finished with "Last Rendez-Vous (Ron's Piece)", which was intended to have had a saxophone part played by astronaut Ron McNair, while aboard the Space Shuttle Challenger. This would have been the first piece of music recorded in space. However, the Space Shuttle Challenger disaster ended this possibility. The track was subsequently dedicated to McNair and the rest of