What if “Planet 9” was hiding in observations from 40 years ago?
Have we finally found Planet 9? It’s way too early to tell. However, a candidate appears to have been found in data collected by the Iras satellite in 1983. Only recent observations will make it possible to confirm the reality of this object or not. On January 25, 1983, theAstronomical infrared satellite (Iras) was created … Read more