Atmosphereless

"Atmosphereless" will be the 28th episode of Season 1 and the 28th episode of World in the Universe. It will be the second half-hour episode, following "The Universe Begins". Unlike the preceding series premiere, it has no Part 1 and Part 2 and the production code is 115. It will air on April 20, 2024.

Plot
Mercury feels depressions about being the only one of the eight planets without a recognizable atmosphere. To make him feel better, the Sun, the other planets, Pluto, Titan, Triton and Europa go to the Atmosphere Creation Factory of the Universe in the other side of the Milky Way to create a thin atmosphere for Mercury.

Trivia

 * "Atmosphereless" – The title of this half-hour episode is a reference to this colloquial word meaning "lacking an atmosphere; not having an atmosphere".
 * This is the second half-hour (22-minute) episode of Season 1 as well as of World in the Universe, following the show's first episode "The Universe Begins".
 * Unlike "The Universe Begins", which has two 11-minute parts and its production code is 101 (101A for Part 1 and 101B for Part 2), "Atmosphereless" is a completely 22-minute episode and its production code is 115.
 * This episode will air on Sintopia and Nickelodeon on April 20, 2024. It will be planned by Sintopia that its date of premiere will be separated by two weeks from the previous 11-minute episode "Orbit Wizard" on April 6, 2024 and the following 11-minute episode "Space Cleaning" on May 4, 2024.