SCIENCE
"Come again, go again, talk again, Mars."
The "opposition" of the Earth and Mars, as their nearest approach to each other is termed in astronomical language, took place last week with a maximum excitement on the part of the public and a minimum excitement on the part of astronomers. These oppositions occur about every 26 months, but every 15 or 16 years there is an opposition when the two bodies ate nearer each other than usual, and about every hundred years or so there is an opposition at which the two planets are...
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