A small, icy visitor from beyond the solar system is giving scientists an unusually close look at the chemistry that may help ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

The Christmas star. The Star of Bethlehem. Whatever you call it, it is a staple of any nativity scene, just as much as the ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

The US space agency called the interstellar object a "friendly solar system visitor," but said it was not alien.

Forensic enhancements of interstellar object 3I/ATLAS reveal 'measurable' anomalies, including a clockwise spin and rigid linear jets.

For as long as I remember there have been frequent forecasts of bright comets coming to our skies. Often, many predictions go way over the top, like “Comet of the Century will Light up the Sky.” When ...

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Europe's Rosetta, after a Hollywood-style chase that lasted more than 10 years and spanned a distance of 4 billion miles, has become the first ever spacecraft to orbit a comet. The ESA's Rosetta probe ...

For as long as I remember there have been frequent forecasts of bright comets coming to our skies. Often, many predictions go way over the top, like “Comet of the Century will Light up the Sky.” When ...