The Amazon River is the world's longest river, measuring 6 992 km.
<span>The European explorers set out overseas during the age of exploration for multiple reasons. The first was to find riches, in the form of precious metals. The second was to spread their religion to the natives of the Americas, and finally, they wanted the glory of being a famous explorer for their country.</span>
Answer:
Universe: all of space and time (collectively referred to as spacetime) and their contents.
Solar System: gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.
Galaxy: a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Cluster: a group of stars formed closely
Constellation: a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
