Masanori Kanamaru—Really clever method for figuring out the interior structure of #Itokawa: using the spatial distribution of smooth terrains to invert for internal density! #LPSC2019#Hayabusa (P.S. happy birthday, Masanori!)
Happy Ring Anniversary to Uranus, whose ring system was discovered #OTD 3-10-1977 by astronomers using occultation data to study the planet's atmosphere. It was the 2nd ring system (after Saturn's) to be discovered. In all, #Uranus has 13 rings.😀#Space https://t.co/Ie4JMiP2BJ