Big bang
How long ago was the Big Bang?
Approximately 13.8 billion years ago
How many Constellations are there?
88 officially recognized constellations
What is a Galaxy?
A massive system of stars, gas, dust, and dark matter held together by gravity.
What is the closest star to Earth?
The Sun
Who is the first us president?
George Washington
What was the Big Bang theory?
The scientific explanation for the origin of the universe.
What is a Constellation?
Grouping of stars in the sky
Whats the name of our Galaxy?
The Milky Way Galaxy.
What color is the hotest star?
Blue
What does redshift in distant galaxix show about the universe?
The universe is expanding
What constellation can be used for navigation?
The North star
Is the Milky Way galaxy a spiral galaxy, true or false
True
What can of star will the sun become?
Red giant
Which elements formed after the Big Bang?
Hydrogen and helium
As Earth orbits our view of the sky changes.
What are the three types of galaxies?
Spiral, elliptical, and irregular
What can of star is the sun?
Main-sequence star
What happens to the universe as it expands?
The space between galaxies increases, causing them to move further apart
Which Constellations help you find the North Star?
the Big Dipper and the Little Dipper
Why do galaxies sometimes collide?
Because their mutual gravity overpowers the expansion of space
Which star help you go North
The North Star