Hydrogen atoms combine to form helium in a process called
Which type of star has an average life of 10 billion years?
A low mass star will eventually become a
Which of the following is not true of high mass stars?
The sun is mainly made up of
Where are most asteroids found in the solar system?
Where is the Oort cloud found?
Cooler, darker regions at the surface of the sun are called
The four innermost planets in our solar system, in order are
What information can astronomers gaine from the colour of a star?
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