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the most conspicuous features on the surface of the sun are dark blemishes called:


the layer of the sun which radiates most of the light that reaches the earth


The sun's energy results form the conversion of hydrogen into:

The length of daylight on the moon is

2 weeks

nuclear fusion

source of the sun's energy


when viewed from the earth the dark-appearing areas on the moon are called:

lunar highlands

oldest lunar feature

solar wind

streams of atomic nuclei, protons, and electrons emitted from the sun

what are the rings of saturn composed of?

small/individual particles or moonlets

nebular hypothesis

the formation of the solar system from a huge cloud of dust and gasses


the high temperatures of this planet are associated with the greenhouse affect

neutron star

stars that are composed of matter in which electrons have been squeezed into the nucleus of the atom

black hole

a star in which light cannot escape because of the immense gravitational pull at its surface and the final stage of massive stars

main sequence

most stars are in this stage of evolution

surface temperature

determines color

what type of galaxy is the milky way?


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