On Eta Carinae, the possibility of life on Europa, ice on the Moon and Psyche
You should change you math grammar in the following sentence. "16 Psyche is one of the largest known asteroids in the belt that lies between Mars and Jupiter. It measures some one hundred and forty miles across and is mostly made of metals like iron".
It should not have an "and" there in the third sentence and should read "...one hundred forty miles..."