Advanced Photon Source helps illuminate the journey of a 4 billion-year-old asteroid
A year ago, scientists got their first look at material gathered from nearby asteroid 162173 Ryugu. Now the results of those studies have been revealed, and they shed light on the history of our solar system and the long trek of this cosmic wanderer. At its closest orbit, asteroid 162173 Ryugu is only about 60,000 miles from Earth. That's only a quarter of the distance to the moon. But acc