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This NASA image shows NGC 5194. M51's stretch of over 60,000 light-years dwarf its companion galaxy, NGC 5195. Credit: Hubble Space Telescope, NASA.

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Universe - in the first second the temperature fell to 10 thousand million degrees. In the next one and a half minutes the temperature dropped 9 thousand million degrees. Protons and neutrons combined to produce helium and hydrogen as universal nuclear reactions. This stopped after 3 minutes when there was not enough heat present to sustain reactions.

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Conditions on the planet Mercury would make living there a challenge. See what the days and nights might be like on the closest planet to the sun in our infographic.

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Top 5 potentially habitable exoplanets

Good reference. Parker's planet could be one of these Top 5 potentially habitable exoplanets

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Living on Pluto: Dwarf Planet Facts Explained (Infographic)

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largest galaxy in the known universe infographic

largest galaxy in the known universe infographic

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Infographics - the Sun (Solar System): includes general description and observation tips #telescopeplanet #infographics

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Life In The Universe Old Astronomy To Today's Discoveries  #Infographic #Universe #Astronomy

Life In The Universe Old Astronomy To Today's Discoveries #Infographic #Universe #Astronomy

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