Akatsuki is a habitable exoplanet that orbits a K-type star, similar to Kepler-442b. It has a purple sky, two moons, and a ring system that creates stunning views from the surface. Akatsuki also has diverse and dynamic biomes and ecosystems that host various forms of life, some of which are based on silicon instead of carbon.

Akatsuki has a mass of about 2.5 Earth masses and a radius of about 1.4 Earth radius, giving it a slightly higher gravity than Earth. This means that we would feel heavier and more tired on Akatsuki, but also stronger and more resilient. It also has a 30-hour day, so there would be no worry about your limited time anymore and its year is about 120 Earth days. In addition to having a thick atmosphere that is rich in nitrogen and oxygen, with traces of water vapor and carbon dioxide. The atmosphere creates a greenhouse effect that keeps the planet warm enough for liquid water to exist on the surface, despite receiving only 0.7 times the solar flux of Earth.

One of the main benefits of living on Akatsuki would be enjoying the beauty and diversity of the planet. Akatsuki has a purple sky that is caused by the scattering of light by nitrogen molecules in the atmosphere. The sky also changes color depending on the position and phase of the two moons and the ring system that orbit the planet. The ring system is made of dust, ice, and rocks that reflect the light of the star in different colors and patterns. The two moons would create spectacular tides and eclipses, as well as provide additional illumination at night. The surface of Akatsuki has forests, grasslands, deserts, wetlands, coral reefs, and other biomes that host different kinds of plants and animals. Akatsuki’s climate would be mild and stable, with moderate seasons and rainfall. The planet would have a variety of biomes and ecosystems, hosting diverse forms of life that have adapted to the conditions of the planet.

How could Akatsuki be habitable?

Akatsuki is considered a habitable planet because it has a surface temperature and pressure that allow liquid water to exist, and an atmosphere that protects the planet from harmful radiation and meteor impacts. Akatsuki also has a magnetic field that shields the planet from stellar winds and flares, and a stable orbit that prevents extreme climate variations. Akatsuki is a realistic planet that is based on scientific data and principles which meets the basic criteria for habitability as defined by NASA.

Akatsuki has abundant water on its surface, covering about 70% of the planet. The water is mostly in the form of oceans, lakes, rivers, and glaciers, but also exists as water vapor in the atmosphere and ice in the polar caps. Akatsuki’s water cycle is similar to Earth’s, with precipitation, evaporation, and runoff. Akatsuki’s water is essential for life, as it provides a medium for biochemical reactions, transports nutrients and wastes, regulates temperature, and supports photosynthesis.

Another benefit of living on Akatsuki would be discovering the secrets and surprises that the planet holds. Akatsuki has unknown forms of life that might have different characteristics, behaviors, and intelligence than those on Earth. Some of these life forms are based on silicon instead of carbon, which means that they use different elements and energy sources to survive and grow. Silicon-based life forms on Akatsuki have shapes, colors, and functions that are different from carbon-based life forms on Earth, such as crystals, metals, and magnets. Akatsuki also has a hidden civilization that lives underground, away from the surface. Underground civilization is composed of intelligent beings that have developed advanced technology and culture over time. The underground civilization has a secret connection to the origin and history of Akatsuki, such as being the original inhabitants, the creators, or the protectors of the planet.

Do you think we could find out Akatsuki one day and meet real aliens?!

2023 NASA Space Apps Challenge

Akatsuki