"CALET", an observation device that approaches the mysteries of the universe such as the identity of dark matter, which has been developed by a joint research group of Waseda University, Japan Aerospace Exploration Agency (JAXA), the United States, and Italy, is being developed by "Kounotori" Unit 5. It was launched.The launch was scheduled for August 2015, 8, but it was postponed to 16th due to the effects of the weather and other factors.

 Astronomical observations, which began by looking up at the night sky, continue even today with large-scale equipment on the ground.So far, human beings have clarified many things through observations of the universe and theoretical research, but it is said that it cannot explain the reason why the present universe is present.To explain this, it is suggested that there are 20 times as many substances and energies as currently observed, but they cannot be observed by ordinary means.They are named dark matter and dark energy, and their elucidation is urgently needed.

"CALET" was created to unravel the mystery of dark matter by observing in detail the high-energy radiation flying from beyond in outer space.We will approach the mystery of the universe by observing the explosion when the star reaches the end of its life and the cosmic rays generated by the collapse of dark matter.If successful, you may find out how the galaxy and the universe became what they are today.Even if you can't make a big discovery, you may be able to find clues to correct your guesses.

 The launched "CALET" will be held at the Japanese Experiment Module "Kibo" on the International Space Station.Since it goes around the earth in about 90 minutes, it is said that it can observe in all directions quickly.Observations have been carried out for two to five years, aiming to elucidate a wide range of cosmic phenomena from inside the solar system to outside the galaxy.

Source:[Waseda University] Professor Shoji Torii of the Faculty of Science and Engineering approaching unknown dark matter, and others will soon start observing at the International Space Station "Kibo".

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