From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn't just trivia—it tells a story about temperature, ...

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If you step back in time, thousands of years ago, people knew about the brightest planets pretty much everywhere. These are Mercury, Venus, Mars, Jupiter and Saturn. And pretty much every culture knew ...

The morning sky boasts the two brightest planets. Jupiter rises soon after midnight and is well up in the south-southeast sky ...

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This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of ...