
OpinionFebruary 17, 2021
The Most Accurate Flat Map of Earth Yet
A cosmologist and his colleagues tackle a centuries-old cartographic conundrum
J. Richard Gott is an emeritus professor of astrophysical sciences at Princeton University.

The Most Accurate Flat Map of Earth Yet
A cosmologist and his colleagues tackle a centuries-old cartographic conundrum

Will the Universe Expand Forever?
The recession of distant galaxies, the average density of matter, the age of the chemical elements and the abundance of deuterium together suggest that the expansion cannot be halted or reversed.