February 4, 1999 (19 Tiger years twelfth lunar month), the Russian space launch an "artificial moon".

1999, the Russian space launch an "artificial moon".
1999, Russia's Progress M-40 cargo spacecraft carrying the side mirrors into space, code-named "banner 2.5" (another site called "flame 2.5") the sun reflection test. In accordance with a pre-conceived, the mirror flap in the centrifugal force will rapidly form a reflective mirror with a diameter of 25 meters (each mirror flap are made of special aluminized synthetic film), in the Mir Space Station under the control of the two astronauts Padalka and A Fujie Aliyev, toward the sun like a sunflower-like. The total weight of this "artificial moon" up to 25 meters in diameter is less than 4 kg. Almost all of the Mir space station after countries such as Russia, (l $ dj��.��r��), France, the Czech Republic and Canada will start to appear and the sun cast a bunch of self-space. The diameter of the beam on the ground for 5-7 kilometers. In the darkness, the brightness of the reflected light 10 times on the moon, enough to make reading reading newspaper.