Astronomy and Space Science: Key Terms and Concepts
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14 Terms
Astronomer
a scientist who studies starts, planets and other objects in the universe
Constellation
an arrangement of stars seen from Earth
data
observations or measurements recorded in an investigation
day
a period of time that is 24 hours long and includes daytime and nighttime
explanation
a description of how something works or why something happens
evidence
information that supports an answer to a question
investigation
an attempt to find out about something
gravity
the pull between Earth and other objects, which acts even without touching
model
something scientist make to answer questions about the real world
orbit
to move in a regular path around something
pattern
something we observe to be similar over and over again
solar system
the sun, the planets that orbit the sun, and other objects that orbit the sun
star
a huge object in space that gives off heat
sun
the only star in our solar system