This man was responsible for inventing the telescope.

This determines a star's temperature.

This is the kind of energy that is given off by the Sun.

This type of galaxy can also be called a "sombrero galaxy."

This is a group of stars that form a pattern.

This invention, developed by Newton, used a curved mirror to sharpen detail in far away objects.

This cloud of space dust and gas is where stars are born.

The Sun is mainly composed of chemical reactions between these two gases.

These galaxies have no discernible shape.

This star is a part of the Little Dipper, and acts as an "anchor" in the Northern Hemisphere.

Buildings and other structure were left behind to show that the movements of these heavenly bodies were important to the ancient peoples

The name for an explosion that ends the life of a star.

These places appear dark on the face of the sun, because of their cooler temperature.

These galaxies are shaped like a football.

The shape of constellations are often based on these.

This event was occurs when Earth casts a shadow on the moon.

The leftover core of a massive star will begin to collapse in on itself, causing what?

This occurs when part of the chromosphere erupts like a volcano.

This is a huge center of stars, dust, and gas, held together by gravity.

This constellation contains what is known in the Northern Hemisphere as the Big Dipper.

Patterns in seasons, and movements of the stars, led to the creation of what?

This is a name for a very large, cold, star.

The Sun rises in this direction.

This often lies at the center of a galaxy.

Constellations change with the seasons because of this.