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Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...
Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...
New research says that Earth could be ejected from our solar system if a passing star was to come close enough.
Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...
I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...
An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in ...
The Voyager probes we sent from Earth back in the 70s found an incredible 'wall of fire' at the edge of our solar system ...
The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...