star - is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity., galaxy - is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter., universe - is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy., climate - is the long-term pattern of weather in an area, typically averaged over a period of 30 years., weather - is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy.,

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