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Explore features. Helpful Browser Tips Essential Chrome tips you should know about Sync Chrome across devices, learn keyboard shortcuts, organize tabs, and more with time-saving tips to help you get the most from your browser. Explore tips. More from chrome Discover more tools and resources. The whole Universe may be vastly bigger than this, perhaps infinitely so. This is hard to visualize, so scientists use the metaphor of a two-dimensional rubber sheet to explain the idea.
The mass of the Universe could bend this rubber sheet in one of three ways, depending on how densely packed with matter the Universe is.
Most scientists now think the shape of the Universe is flat. Looking back in time Because light takes time to travel, when we look into space we are looking back in time.
The most distant objects visible are galaxies photographed by the Hubble Telescope. We see them as they were 13 billion years ago. Williams, Stacey C. Sawyer, Carl M. Wimmer, Joseph R. Brown, H. Eugene LeMay, Bruce E. Mann, Paul Kennedy. Mamlouk, John P. Callister, David G. Callister Jr. London, Patricia W. Ladewig, Michele C. Davidson, Jane W. Bindler, Kay J. Musser, Blake E.
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