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
Shelled invertebrate fossils of the Ordovician period
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Transformation and Evolution of a Long-Period Comet
Weak bones cause the spine to collapse over time
A clock is showing the time as exactly 3:00 p.m. and 25 s.
Hubble Space telescope