When an alien spaceship lands on Earth in need of help, leaders of countries around the world help and house them, causing tension between humans and these costly guests.

In the near future, a young mother leaves behind a book for her daughter before she embarks on her space journey to the outer solar system in an attempt to communicate with extraterrestrial creatures. Sections from her book are interspersed with her husband's verbal recollections of their love story, which he addresses to their young daughter.

In 1975, a meteor shower brings hundreds of invasive alien plant species to Earth, who quickly take hold of local ecosystems. A scientist grows up and grows old amid the fallout.

Two female biologists spend a few months in a hotel in the Northeastern United States to research shore life, and whereas one pursues romance with men, the other feels spurned by unrequited love.

A scientist collecting samples on Titan finds the expedition to be beyond her wildest dreams—and her darkest nightmares—when she connects with disembodied alien life. Their strange communications take on new urgency when both their lives are at risk.

A Jesuit biologist and his team work to uncover the mysteries of a planet in the hope that it can be inhabitable for humans. But as he interacts with the native inhabitants, he realizes he has a decision to make: protect the planet or let those on Earth use it for their own selfish needs.

An alien race uses humans to host their parasitic offspring. After a human boy witnesses the birth of these parasites, he is horrified by the symbiotic agreement and realizes why the alien has nourished him so much better than his siblings all his life.

In the near future, a new planet has been discovered, but excitement at this discovery quickly turns into fear and hysteria as livestock are mutilated and lights begin to appear in the sky.

An older Indian man recounts his story of "alien" encounters on Mars during Saturday tea.

An aging man is taking care of his dementia-effected wife when his long-absent son—who has transformed into a silver-skinned, red-eyed creature—returns to Earth from his job as an outer space exobiologist.