Image of the asteroid group

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Image of the asteroid group “Jupiter Trojan” in almost the same orbit as Jupiter (provided by NASA)

Image of US spacecraft Lucy aiming for the asteroid group

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Image of US spacecraft Lucy aiming for the asteroid group “Jupiter Trojan” (provided by Southwest Research Institute)

[Collaboration with Washington]On the 16th, NASA launched Lucy, a spacecraft aiming for the world’s first close-up observation of the asteroid group “Jupiter Trojans”, from Cape Canaveral Air Force Base in Florida. It will take 12 years to visit seven asteroids that orbit almost the same as Jupiter and one between Mars and Jupiter. It is expected to approach the mystery of the history of solar system formation.

The Trojans are a group of more than 7,000 asteroids, which are said to be the remnants of the formation of the solar system 4.6 billion years ago. There are two groups in front of and behind Jupiter, and the surface color is slightly different. It is possible that they were formed in different places.