Why Was Pluto Kicked Out of the Solar System?

For advanced readers, parents, and educators interested in exploring this idea more here are a few resources to get started with:

Moons are planets: Scientific usefulness versus cultural teleology in the taxonomy of planetary science: https://www.sciencedirect.com/science/article/pii/S0019103521004206 (This paper gives an excellent overview of the history and current usage of the term planet.)

Geophysical Planet Definition: https://www.hou.usra.edu/meetings/lpsc2017/pdf/1448.pdf

News article about planetary scientist letter to IAU: https://spaceref.com/press-release/planetary-scientists-and-astronomers-oppose-new-planet-definition/

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Send questions to [email protected]. If you would like your name included with the question, please include its pronunciation.

Do other planets (specifically Proxima B and Proxima C) have atmospheres and volcanoes?

The episode on finding exoplanets: https://www.arwenhubbard.com/podcasts/found-in-space-a-science-podcast-for-kids-and-teens/episodes/2147842696

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If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.

Is the sun green like some of my friends say and if it changes colors then will life be different? We learn about what light is, how colors work, and what color tells us about stars.

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If you would like to ask a space question, please have your folks send it to [email protected]. If you want your name included with the question, please include its pronunciation.

Send questions to [email protected].

If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.

If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.

If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.

If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.

If you would like to ask a space question, please have your grown-up send it to [email protected]. If you would like your name included with the question, please include its pronunciation.