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Questions related to Kuiper Belt Objects that exist in an annulus from 30AU to approximately 50AU from the Earth's Sun.
Questions about the "adulthood" of stars. The main sequence is a distinctive band of stars that appears in a color-magnitude plot (known as Hertzsprung-Russell diagram). Stars appear in the main seque…
the group of galaxies that includes the Milky Way among others.
about the lack of evidence for alien life, despite the growing evidence that suitable planets are reasonably plentiful.
Questions regarding Callisto, an icy moon of Jupiter.
Questions regarding chthonians, a hypothesised class of exoplanets that are the remnant cores of hot Jupiters.
track and display the current time.
Questions about patterns formed by group of prominent stars in the night sky.