Our star, the ___ is the only star in our solar system.
The ______ of the moon are caused by the orbit of the moon around the Earth and the _____ (__________) of the Earth around the sun.
orbit, orbit, (revolution)
The _____ that we see in the night sky are located in the Milky Way ______.
When ____ ______ collides with the earths _______ field an aurora can form.
solar wind, magnetic
When solar wind collides with the earths magnetic field an ______ can form.
The Sun is halfway through its _ _______ year lifetime.
____ is a space probe that orbits and monitors the sun.
The North Star is 434 light years from earth. It would take ___ _____ to reach us.
Plasma is _______ particles of gas that make up the sun.
The sun contains __% of the mass of the solar system.
The phases of the ____ are the sequential changes in its appearance.
Fusion is the process of turning _______ into ______.
Imagine a star that is 100 light years from earth. If the star exploded exactly 80 years ago, we would get to see the explosion in __ years.
The Apollo space missions were used to send people to the ____.
With a lunar eclipse the _____ must be between the ___ and the ____.
earth, sun, moon
The sun, moon, and the stars appear to rise in the ____ and set in the ____.
There must be a full moon for a _____ eclipse to occur.
A lunar eclipse does not occur every ____ because the orbital plane of the moon does not match the orbit plane of the _____.