What is Hubble's law?
A) The longer the time period between peaks in brightness, the greater the luminosity of the Cepheid variable star.
B) The recession velocity of a galaxy is directly proportional to its distance from us.
C) The recession velocity of a galaxy is inversely proportional to its distance from us.
D) The faster a spiral galaxy's rotation speed, the more luminous it is.
E) The faster a spiral galaxy's rotation speed, the less luminous it is.
Question 2
Nonscientific practices that make no claims about how the natural world works do not conflict with science.
Indicate whether the statement is true or false
Detail of the Chinese-style gate of Nishi Hongan-ji in Kyoto; Momoyama period; National Treasure
In middle childhood, children spend increasing amounts of time with peers and friends.
Press into points along the neck with your thumb, one side at a time. Apply circular friction to ...
You're just on Time
Hubble Space telescope
Jim Croce - Time in a bottle - 1973