planets and stars

i have a questions….=)solograph-measures the solar energy released by the sun..?

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1. )which statements best describe how d sun releases energy? a. hydrogen atoms fuse and produce helium, which move towards the earth as radiation. b.the sun melts metals until they’re white hot which is what we see c. d sun… Continue Reading →

Please explain your choice here, I don't know how to find the assumption from the argument?

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For many decades, humans have dreamed of exploring beyond the solar system to the distant planets and stars. The space technology for doing this has until recently been confined to the realm of science fiction. However, developments in science are… Continue Reading →