What is the name of the galaxy cluster that the Milky Way belongs to?
|A)||the Spiral Group|
|B)||the Virgo Group|
|C)||the Local Group|
|D)||the Super Group|
Where are the oldest stars in the Milky Way galaxy located?
|B)||halo and central bulge|
|D)||central bulge only|
What do astronomers use to map the shape of the Milky Way?
How many stars are in the disk of the Milky Way?
|A)||the same number that you can see with your eyes on a clear night|
The redshift of quasars measures __________.
|B)||their age of formation|
|D)||their distance from Earth|
Galaxies that are extremely bright are called __________.
|A)||active galactic nuclei|
What was the first galaxy to be discovered outside of the Milky Way galaxy?
|A)||the Andromeda Galaxy|
|C)||the Sagittarius Galaxy|
|D)||the Local Group|
Which galaxy shape is not a part of Hubble's classification system?
The smallest galaxies are called __________ and the largest are called __________.
|A)||dwarf ellipticals, giant ellipticals|
|B)||dwarf spirals, giant ellipticals|
|C)||dwarf ellipticals, giant spirals|
In which list are celestial features correctly shown in order of increasing size?
|A)||galaxy, solar system, universe, planet|
|B)||solar system, galaxy, planet, universe|
|C)||planet, solar system, galaxy, universe|
|D)||universe, galaxy, solar system, planet|
What was in this part of the Milky Way prior to 4.6 billion years ago?
|C)||a cloud of dust and gas|
|D)||a supernova star|
The Milky Way contains a large central bulge made up mostly of ______ .
|B)||old red stars|
|C)||remnants of supernovas|
|D)||dust and gas|
About how long does it take the solar system to make one revolution around the Milky Way?
|C)||24 million years|
|D)||240 Million years|
The light from most distant galaxies is _______ .
|A)||shifted toward the red end of the spectrum|
|B)||shifted toward the blue end of the spectrum|
Evidence indicates that the expansion of the universe is ________.
|B)||settling into a constant rate|
Which scientist was the first to find evidence that the universe is expanding?
Which shift in the electromagnetic spectrum received from distant galaxies suggests that the universe is expanding?