Cool book im reading :P

There is this book ive started reading and im obsessed with it !! when i first bought it i didn't thought id like it that much XD

Its called "Αποστολή Χαίρε Μαρία (Project Hail Mary)" by Andy Weir 

Its about a physics teacher that some how end up in a spaceship and has forgotten everything and is slow gaining back his memory from flashbacks while the sun is being eaten by some weird organism that in some years is gonna freeze the earth and everyone is gonna die and he has like 40 day to figure out everything (the book is about 500 pages long)

If you're suffering from loneliness, derealization and you're a space and physics nerd i highly recommend reading it