The Size, Scale and Structure of the Universe Image courtesy of The Cosmic Perspective by Bennett, Donahue, Schneider, & Voit; Addison Wesley, 2002.
Size and Scale of the Universe
Size and Scale of the Universe Image courtesy of The Cosmic Perspective by Bennett, Donahue, Schneider, & Voit; Addison Wesley, 2002.
July 21, 2004 Tea Break It took Voyager 20 years to get to Pluto. At the same speed, how long does it take to get to the nearest star? How long will it.
The Age of the Universe
… but the equilibrium is unstable. In order to prevent the universe from either expanding or contracting, Einstein introduced a scalar field.
