Shepherd satellites keep Saturn's F ring narrow
a. True
b. False
Indicate whether the statement is true or false
True
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If we increased the pressure in a gas, how will its spectral lines be affected?
What will be an ideal response?
Is the back side of the Moon always dark?
What will be an ideal response?
Which statement about this cluster is not true?
A) It contains some stars that are burning helium in their cores. B) It probably contains no young stars at all. C) It is likely to be located in the halo of the galaxy. D) It is likely to be spherical in shape. E) It is the type of cluster known as an open cluster of stars.
Most stars in our part of the Galaxy are formed
A) in a singular event just after the Big Bang. B) alone. C) in open clusters of a few dozen. D) in associations of thousands of stars across a spiral arm of the Galaxy. E) in globular clusters of millions of stars.