Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. https://t.co/9EWZGpvdHH https://t.co/9EWZGpvdHH ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. https://t.co/S7SiKl8MTG https://t.co/S7SiKl8MTG ...