ASTRA LOST IN SPACE Kanata no Astra

Itʼs the first day of Planet Camp, and Aries Spring couldnʼt be more excited! She, along with eight other strangers, leave for Planet McPa for a weeklong excursion. Soon after they arrive, however, a mysterious orb appears and transports them into the depths of space, where they find an empty floating spaceship…

(Source: Viz Media)

Note: The first and last episode aired with a runtime of ~48 minutes as opposed to the standard 24 minute long episode.