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发帖数: 1994 | 1 Mars Rising Through Arch Rock
Credit & Copyright: Wally Pacholka (Astropics)
Explanation: Mars is heading for its closest encounter with Earth in over 50,000 years.
Although Mars and Earth continue in their normal orbits around the Sun, about every two
years Earth and Mars are on the same part of their orbit as seen from the Sun. When this
happens again in late August, Mars will be almost as near to the Sun as it ever gets, while
simultaneously Earth will be almost as far from the |
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