Explaining how young asteroids 2019 PR2 and 2019 QR6 are, astronomer Petr Fatka said 300 years is like 'this morning—not even yesterday—in astronomical timescales.'
The pair was initially spotted in 2019, one by a team using the Panoramic Survey Telescope and Rapid Response System instrument located at the Haleakala Observatory in Hawai'i. The other NEA was discovered by astronomers conducting the NASA-funded Catalina Sky Survey at the University of Arizona's Lunar and Planetary Lab in Tucson, Arizona.
Using multiple modeling techniques and through the recovery of previously unnoticed detections made with the Catalina Sky Survey in 2005, the team determined that the pair separated only 300 years ago. The team addressed this mystery by creating formation models that assume the parent body of the duo was acold outer edges of the solar system—
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