2.
light bouncing off other source
3.
icy body that releases gases as it orbits the sun
4.
meteorite fragment that reaches the ground
5.
strick of light seen when a meteorid heats up in the atmosphere
6.
a huge collection of gas,dust,and billions of stars and their solar system,also held together by gravity
7.
the curved path of a celestial object or spacecraft around a star, planet, or moon
8.
a person who study and explore the space
9.
the study of everything in the universe beyond Earth's atmosphere.
10.
is a large asterism consisting of seven bright stars of the constellation Ursa Major
11.
asterisms recognizable patterns of stars
12.
is a moment in time when the Sun crosses the Earth's equator
13.
is a celestial body that is in orbit around the Sun
14.
way the galaxy that includes the Solar System
17.
the point where the Sun appears to reach either its highest or lowest point in the sky for the year
