YA Novels with Aliens and Extraterrestrial Elements

In Rick Yancey's "The 5th Wave", the alien species known as "The Others" launch a devastating invasion of Earth, leading to a global catastrophe.

In Pittacus Lore's "I Am Number Four", a group of teenagers, including the protagonist John Smith, uncover a crashed alien spaceship and encounter Number Four, an alien fugitive.

In Beth Revis's "Across the Universe", Amelia journeys across space to meet the Aeldari, an ancient and enigmatic alien race.

In Samanthan Shannon's "Starstruck", a young woman named Jessica falls in love with an alien boy named Jaxon, who crash-lands on Earth.

In Joelle Charbonneau's "The Testing", an alien species known as "The Controllers" has taken over Earth and is conducting experiments on humans to determine their suitability for survival.

In Stephenie Meyer's "The Host", a group of teenagers, including the protagonist Melanie Stryder, are abducted by aliens and taken to another planet.

In Ally Condie's "Matched", an alien species known as "The Society" has created a society where every person is matched with their ideal partner.

In Neil Gaiman's "Stardust", a young woman named Yvaine discovers that she is part alien and must use her newfound powers to save the world.

In Kass Morgan's "The 100", an alien species known as "The Grounders" has caused a nuclear apocalypse on Earth, forcing the survivors to live in space.

In Veronica Roth's "Divergent", a group of teenagers are chosen to participate in a space mission to find a new home for humanity.

In Josephine Angelini's "The Star-Crossed Lovers", an alien prince named Romeo falls in love with a human girl named Helen.

In Stephenie Meyer's "The Host", a young woman named Melanie Stryder is abducted by aliens and discovers that she is the key to saving her planet.

In Joelle Charbonneau's "The Testing", an alien species known as "The Controllers" has taken over Earth and is conducting experiments on humans to determine their suitability for survival.

In Veronica Roth's "Divergent", a group of teenagers are chosen to participate in a space mission to find a new home for humanity.

In Josephine Angelini's "The Star-Crossed Lovers", an alien prince named Romeo falls in love with a human girl named Helen.