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Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the ...
A11pI3Z is only the third interstellar visitor to be discovered, and astronomers can’t say yet whether it is a comet or a ...
A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.
Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.
For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...
Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...
Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to oblivion ...
New research says that Earth could be ejected from our solar system if a passing star was to come close enough.
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