Social Entertainment / TV

Someday in Zero Gravity

2025 · 1 season · Drama

Four high school girls in an astronomy club once dreamed of going to space together. Years later, as adults leading separate lives, they unexpectedly reconnect with their forgotten ambition. Inspired by the idea that an ultra-small satellite might finally make their dream achievable, they reignite their passion and embark on a second youth chasing space.

Where to watch Someday in Zero Gravity

Someday in Zero Gravity is streaming in the US on Amazon Prime Video.

Streaming data by JustWatch, for the US. Availability changes often — open Social Entertainment to see providers for your own region.

Seasons

• Season 1 — 32 episodes (September 8, 2025)

Cast

• Mai Kiryu as Asuka Mochizuki
• Misato Morita as Hikari Hibino
• Yuki Katayama as Amane Mizuhara
• Marika Ito as Haruko Kiuchi
• Daiken Okudaira as Kei Kanazawa
• Sora Tamaki as High School Asuka Mochizuki
• Juri Kosaka as High School Hikari Hibino
• Aoi Shirakura as High School Amane Mizuhara
• Kiri Yamashita as High School Haruko Kiuchi

Details

First aired

September 8, 2025

Episodes

32

Genres

Drama

Network

NHK

Status

Ended