Particles that escape from the sun's __________ move through space as solar wind.

Prominence, or huge arching columns of gas, are thought to be caused by__________.

What does CME stand for?

An aurora, like the aurora borealis is caused by

A binary system is composed of ___________ stars.

When stars are located closer to one another, their attraction to one another increases due to __________.

Why are circumpolar constellations visible all year long?

The __________ __________of a star is a measure of the amount of light it gives off.

The __________ __________ is a measure of the amount of light received on earth.

Circumpolar constellations __________.

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