The expansion of the universe can be described by Hubble's Law --- vr=H0D. The best current value of the Hubble Constant is about <1> in units of <2>. This implies that a galaxy 2 Mpc distant would be traveling away from us at a speed of <3>. All galaxies in the universe are traveling away from us except those that are in the <4>. The principle of <5> states that the expansion of the universe looks the same from any vantage point in the universe, while the principle of <6> states that the expansion is the same in every direction.
This expansion implies that a long time ago all of the galaxies were in the same location. We call this explosion that began the universe the <7>. It describes the universe beginning in a very simple state of <8> temperature and <9> density and slowly developing the more complex structures we see today.
@ qu.1.1.blank.1=70,50,90,30@ qu.1.1.blank.2=km/s*Mpc,m/s*Mpc,km/s*pc,m/s*pc@ qu.1.1.blank.3=140 km/s,100 km/s,180 km/s,60 km/s@ qu.1.1.blank.4=Local Group,Virgo Supercluster,Fornax Supercluster,@ qu.1.1.blank.5=homogeneity,isotropy,infinity,eternity@ qu.1.1.blank.6=isotropy,homogeneity,infinity,eternity@ qu.1.1.blank.7=Big Bang,Giant Space Kabloie,Galactic Formation Event@ qu.1.1.blank.8=high,medium,low@ qu.1.1.blank.9=high,medium,low@ qu.1.1.grader.1=menu@ qu.1.1.grader.2=menu@ qu.1.1.grader.3=menu@ qu.1.1.grader.4=menu@ qu.1.1.grader.5=menu@ qu.1.1.grader.6=menu@ qu.1.1.grader.7=menu@ qu.1.1.grader.8=menu@ qu.1.1.grader.9=menu@ qu.1.2.mode=Blanks@ qu.1.2.name=Cosmology 1@ qu.1.2.editing=useHTML@ qu.1.2.question=The expansion of the universe can be described by Hubble's Law, vr=H0D. The best current value of the Hubble Constant is <1> in units of <2>. This implies that a galaxy 1 Mpc distant would be traveling away from us at a speed of <3>. All galaxies in the universe are traveling away from us except those that are in the <4>. The principle of <5> states that the expansion of the universe looks the same in every direction, while the principle of <6> states that the expansion looks the same from any vantage point in the universe
This expansion implies that a long time ago all of the galaxies were in the same location. We call this explosion that began the universe the <7>. It describes the universe beginning in a very simple state of <8> density and <9> temperature and slowly developing the more complex structures we see today.
@ qu.1.2.blank.1=70,50,90,30@ qu.1.2.blank.2=km/s*Mpc,m/s*Mpc,km/s*pc,m/s*pc@ qu.1.2.blank.3=60 km/s,50 km/s,90 km/s,30 km/s@ qu.1.2.blank.4=Local Group,Virgo Supercluster,Fornax Supercluster,@ qu.1.2.blank.5=isotropy,homogeneity,infinity,eternity@ qu.1.2.blank.6=homogeneity,isotropy,infinity,eternity@ qu.1.2.blank.7=Big Bang,Giant Space Kabloie,Galactic Formation Event@ qu.1.2.blank.8=high,medium,low@ qu.1.2.blank.9=high,medium,low@ qu.1.2.grader.1=menu@ qu.1.2.grader.2=menu@ qu.1.2.grader.3=menu@ qu.1.2.grader.4=menu@ qu.1.2.grader.5=menu@ qu.1.2.grader.6=menu@ qu.1.2.grader.7=menu@ qu.1.2.grader.8=menu@ qu.1.2.grader.9=menu@