It is not often more than half the planets in Earth's solar system are visible in the same night sky, but this week it will happen.
University of Nebraska Lincoln astronomer Martin Gaskell says people will need clear skies but not a telescope to see Mercury, Venus, Mars, Jupiter and Saturn.
Astronomers are calling it, "The best planetary gathering for 32 years."
The next one like this will be in 2036.
Gaskell says there was an alignment like this a few years ago, but this will be the last one for quite awhile. And, he says, this is really a nice one.
He explains that is because all the planets are bright enough to be visible in the dark skies.
Four planets, Mercury, Venus, Mars and Saturn, are in the west and southwestern sky. Jupiter will be in the south in the early evening.
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