Alexei Mitrofanov, a flamboyant lawmaker from the ultra-nationalist LDPR party, earlier proposed that Madonna's desire to make the trip, which she expressed during her two-day visit to Russia, be fulfilled - a proposal that met with rejection by Russian lawmakers.
"We are aware of today's debates in the State Duma [the lower house of the Russian parliament] as to the proposed flight by Madonna to the International Space Station," Igor Panin said.
"Although a precise schedule for the flights of the so-called 'space tourists' has been approved until the end of 2008, Madonna's request will not meet any objections, and her representatives can approach us even now," he said, adding that the pop star's physical fitness and finances guarantee that her space dreams might come true as early as 2009.
Madonna's world tour, which continues next week in Japan, has drawn widespread criticism from religious groups for its depiction of a mock crucifixion. In Moscow, Russian nationalists vowed to disrupt her concert, while in Germany the authorities briefly considered an investigation under the country's religious blasphemy laws.
Tuesday's Moscow performance at the Luzhniki stadium, which was guarded by up to 7,000 police, passed off without any serious problems.