[SunkenCiv]

oldest to newest, from the FRchives, more about this 'pink planet' discovery:

• Media Advisory: Press Conference in Brazil to Announce Discovery in Outer Solar System
• Newfound pink world lurks at solar system fringes
• Dwarf planet discovery hints at a hidden Super Earth in solar system
• A planet past Pluto? Astronomers redefine the solar system's edge
• New planet nicknamed after Biden
• Scientists Nickname Planet-Like Object 'Biden'

[KoRn]

I suppose they do, but how do they REALLY know that it’s OUR Sun the object is orbiting around, given how far away it is. Probably a stupid question; just sort of thinking out loud.