Definition: Hayabusa (also spelled hayasubu or hayasu, a Japanese name) refers to an asteroid in the constellation of Cygnus that was discovered by astronomer Makoto Hayashi on December 14, 2005. It is also known as Siding Spring 63, although its exact shape remains a matter of conjecture and debate among scientists. Hayabusa has been orbiting Siding Spring since September 27, 2008, and currently has an altitude of about 100 kilometers (about 62 miles) above the asteroid's surface. It is one of several asteroids to be observed by NASA's Hayabusa mission, which began in 2014. The asteroid was named after Japanese engineer Takashi Hayashi, who worked on designing and testing the mission for NASA. The name "Hayabusa" means "cleaning up" or "reducing pollution," as it is believed to have been designed to help reduce the amount of pollutants that enter Earth's atmosphere through its surface. The mission has detected over a dozen active volcanoes in Siding Spring, which may indicate that it was formed by a hot熔岩 (fissile) planet. This discovery highlights the importance of studying asteroids and other space objects for future missions to study Earth's geology and other phenomena in outer space.

Hayabusa