Science Museum in Osaka is known for its planetarium, which is the fifth largest in the world. In 1935 the municipality of Osaka announced the purchase of projectors made by Carl Zeiss. It was about the device that transmitted images of celestial bodies on the screen. The Museum was opened in 1937 and located in it the planetarium enjoyed great popularity, including his visits to the manga author, Creator of "Astro-boy" Tezuka Osamu and the fiction writer Sake sale.

In the late 80-ies of the last century municipal electrical Museum was disbanded and in its place was created the Museum of science. Its opening was timed to celebrate the 100th anniversary of Osaka in 1989. For the construction of a new building for the Museum has been allocated more than six million dollars. Re-opening of the renovated planetarium took place only in 2004.

At the Science Museum of Osaka four floors, each dedicated to specific topics. In total the Museum has more than two hundred exhibits, many of them can touch, explore and conduct experiments. On the ground floor presents the items and devices that demonstrate the physical properties of light, sound and air. On the second floor, offering everyone to conduct various experiments with computational devices and sensors, and also to see optical illusions. The third floor is devoted to the subject of electricity. Here are the different types of energy generators, their work can be seen in action – for example, as converted into electricity the kinetic energy of water. The fourth floor is reserved for exhibitions, dedicated to the Universe. In this part of the Museum you can observe the heavenly bodies with a telescope, to hold in your hands a fragment of the meteorite, to see the thumbnail of the planets of the Solar system and the Sun, and the globe of diameter 2 m.

The Museum regularly hosts shows on scientific topics.