Sielunian

Sielunian is a fictional species from the Star Trek universe, first introduced in the animated series Star Trek: Lower Decks. Sielunians are a humanoid species with a unique physiology that allows them to survive in the vacuum of space without the need for spacesuits. Their bodies are covered in a thin, translucent membrane that protects them from the harsh conditions of space. This membrane also allows them to breathe and absorb oxygen directly from the atmosphere, making them well-suited for space travel and exploration.

Sielunians have a distinctive appearance, with their skin appearing to shimmer in the light due to the translucent membrane. Their eyes are also unique, with a vertical pupil that allows them to see in multiple directions simultaneously. This adaptation is particularly useful for navigating the vast distances of space.

The Sielunian homeworld is not explicitly named in the series, but it is implied to be a planet with a dense atmosphere and abundant resources. The Sielunians are known for their advanced technology and their ability to adapt to a wide range of environments. They are often depicted as being curious and adventurous, with a strong sense of exploration and discovery.

In the Star Trek universe, Sielunians are often portrayed as allies of the Federation, working alongside human and other alien species to explore the galaxy and protect it from various threats. Their unique physiology and advanced technology make them valuable assets in the ongoing struggle against the forces of darkness and destruction.