April 11, 2014. Russian President Vladimir Putin, second left, holds a meeting at the Moscow Memorial Museum of Cosmonautics. Giovanni Bignami, right, president of the International Committee on Space Research, professor of astronomy. Lev Zelyony, left, vice president of the Russian Academy of Sciences, director of the Russian Academy of Sciences' Space Research Institute.

11.04.2014#2410617

April 11, 2014. Russian President Vladimir Putin, center, and Giovanni Bignami, right, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics. The museum's director Natalya Artyukhina, left.

11.04.2014#2410611

April 11, 2014. Russian President Vladimir Putin, center, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics. The museum's director Natalya Artyukhina, left.

11.04.2014#2410610

April 11, 2014. Russian President Vladimir Putin attends the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410609

April 11, 2014. Russian President Vladimir Putin, left, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics. The museum's director Natalya Artyukhina, right.

11.04.2014#2410608

April 11, 2014. Russian President Vladimir Putin attends the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410607

April 11, 2014. Russian President Vladimir Putin, center, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics. The museum's director Natalya Artyukhina, left.

11.04.2014#2410606

April 11, 2014. Russian President Vladimir Putin, right, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, before the opening of the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410605

April 11, 2014. Russian President Vladimir Putin, right, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410604

The exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410601

The exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410599

April 11, 2014. Russian President Vladimir Putin, right, and Giovanni Bignami, president of the International Committee on Space Research, professor of astronomy, attend the exhibition "Three Days in Gagarin's Life" conducted at the Moscow Memorial Museum of Cosmonautics.

11.04.2014#2410598