If you've noticed a glimpse of red in the sy lately, its just Mars. On Christmas day the Earth will overtake and lap Mars. Mars is opposite the sun and at its closest point to the Earth. Mars has come within 88 million miles of Earth this year, not nearly as close as in 2003, when Mars came within 56 million kilometers. Scientists will be using this opportunity to study Mars using satellites and a space telescope.
Mars will be at its closest point to Earth on Christmas Eve and will be visible just to the upper left of the Moon in the northeastern sky.
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