Malta is born in Bluewater Village, a small district in Riverblossom Hills. She is the result of an alien impregnation of her father, the wealthy Malcolm Landgraab IV. It is unlikely that her alien father Pollination Technician is the same PT as Nikto and Klatu's, as they show quite different genes in their descendants.
Different from Strangetown, where the Curious family resides, is the whole alien thing not so common and accepted in Riverblossom Hills. She grows up with hardly any friends and is mostly of her time considered as a freak.
When she is old enough to apply for college she discovers the Strangetown University, where being green is quite a common thing. She starts her college life with the physics major and gets to meet Kade Curious and his boyfriend Alexander Goth. Malta is happy to have found someone like herself and enjoys the days spend with Kade, however the jealousy of Alexander grows. At a certain point Alexander can't take it anymore and leaves campus, giving Malta and Kade the change to finally fall in love with each other. Malta graduates Magna Cum Laude and Kade with Summa Cum Laude, proud of themselves they leave their collegelife.
Malta and Kade find a home after finishing college and marry not much later. Malta gets a job in the medicine career, but has to leave for maternity leave again. She gives birth to twin boys Yah and Matteo Curious. She taught Matteo how to walk and talk and also potty trained him, later in their lives she put the boys in private school.
When her boys are grown up they leave the house and leave Malta alone with her husband Kade. She decides to retire so she can pay more attention to her hobbies and her husband.