NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into Earth's cosmic neighborhood.

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The latest observations of 3I/ATLAS suggest it resembles comets from the outer reaches of our solar system, but may be ...

The second object that strayed from another solar system to ours was 21/Borisov. It was discovered in 2019 and is believed to ...

NASA's Hubble Space Telescope has captured an incredible image of an alien comet that's soaring through our galaxy from ...

A Harvard physicist has asserted that new images of the Manhattan-sized interstellar object rocketing through our inner solar ...

Instead, scientists are looking into existing spacecraft already in orbit around other planets. Harvard Professor Avi Loeb ...

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a ...

Avi Loeb suggested that NASA may have rushed to conclusions by ruling out the possibility of an artificial aircraft.

The latest observations suggest the comet could be as wide as 5.6 kilometres, and at least 320 metres. Further observations by NASA's James Webb Space Telescope will help researchers work out the size ...

A mysterious interstellar object recently entered our solar system, exhibiting unusual speed and trajectory. Some scientists ...