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.