Spleen Pain Causes 1  : Swelling of spleen is called splenomegaly. It can be caused by liver diseases, infections and blood related problems and also irregularity in the lymph system.  Certain infections like mononucleosis (caused by virus), toxoplasmosis (caused by parasite) and endocarditis (caused by bacteria) may cause pain in the spleen.
The mean atmospheric temperature on Neptune is as low as â218 Â°C (55.1 K) at the cloud tops and about -200 Â°C (72 K) at the pressure level equal to 1 Earth atmosphere. The lowest observed temperature within the atmosphere is about -221Â°C (51.8 K). Probably something like -210 degrees celcius but no one knows the exact temperature.
Uranus is the coldest planet in our Solar System, with a lowest recorded temperature of -224Â°C. Despite its distance from the Sun, the largest contributing factor to its frigid nature has to do with its core.