Add Yahoo as a preferred source to see more of our stories on Google. The Oort Cloud is home to countless frozen bodies that occasionally get knocked toward the inner solar system, becoming the comets ...

Scientists have solved one of the solar system's enduring mysteries with the help of an unexpected source: a planetarium show. Last year, experts at the American Museum of Natural History were ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar system. Now, a team of researchers have taken a completely different approach to ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall, ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Our solar system passed through a vast wave of gas and dust around 14 million years ago, dimming Earth’s view of the night sky. The wave may even have left traces in our planet’s geological record.

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Add Yahoo as a preferred source to see more of our stories on Google. The new planetarium show revealed a backwards S-shaped spiral in what's known as the Oort Cloud far beyond Pluto (American Museum ...