.@NASANewHorizons experts are gathering @JHUAPL ahead of tonight’s historic flyby of #UltimaThule. Join them live at 8pm ET as they talk about this icy world located ~1 billion miles past Pluto & how it'll give us insight into the early solar system: https://t.co/oJKHgKpQjH pic.twitter.com/kv1iW9icw1

— NASA (@NASA) December 31, 2018