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Ancient rocks from Greenland, Canada and Hawaii preserve a rare chemical fingerprint that may come from the Earth before the moon-forming impact, a new study reports.

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"The Russians and the Chinese are demonstrating more sophisticated orbital maneuvering abilities. There's no denying that,"

On Oct. 20, 1970, the Soviet Union launched the Zond 8 spacecraft on a mission to the moon.

The new moon will see dark skies for the peak of the Orionid meteor shower, while three days will pass in front of the red star Antares for observers in South America.

NASA's Hubble Space Telescope captures the glittering spiral galaxy NGC 6951, where a central bar fuels a spectacular ring of newborn stars.

The livestream is scheduled to start at 1:30 p.m. EDT (1730 GMT) on Oct. 20.

Here's what to expect when the Orionid meteor shower peaks on Oct. 21-23 in a dark, moonless sky.

The latest aurora forecast for tonight help you make sure you're in the right place at the right time to see the northern lights.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.