TOKYO – A small capsule containing asteroid soil samples that was dropped from space by Japan's Hayabusa2 spacecraft and landed in the Australian Outback arrived Tuesday in Tokyo for research into the origin of the solar system and life on Earth.The Japan Aerospace Exploration Agency said its capsule, tightly sealed and carefully stored in a container box, arrived in Japan on a flight from Australia, attended by a group of JAXA officials.At the end of its yearlong journey from asteroid Ryugu, more than 300 million kilometers (190 million miles) from Earth, Hayabusa2 released the capsule Saturday from 220,000 kilometers (136,700 miles) in space, successfully sending it to land on a targeted area in a sparsely populated desert in Woomera.