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Join us as we show you where four incredible scientific "firsts" unfolded in the northern hemisphere night sky, ranging from ...

Comet PanSTARRS recently survived its close brush with the sun. When you purchase through links on our site, we may earn an ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

New research reveals that the mysterious interstellar visitor 3I/ATLAS comes from a very cold alien environment, new research ...

A telescope tracked an alien comet after its solar pass, and the chemistry it found inside was nothing like what came before.

University of Michigan astronomers have found that the interstellar comet 3I/ATLAS contains 30 times more "heavy water" ...

The flight of 3I/ATLAS through the solar system last year was a stroke of luck for research. The water in the object was also ...

Comet 3I/ATLAS is only the third interstellar visitor to be confirmed and quite possibly the oldest. Scientists estimate it ...

A mysterious interstellar comet older than the Sun is exposing alien chemistry and rewriting astronomy as we know it.

3I/ATLAS is now sailing away from Earth and our solar system itself, but astronomers have already learned a wealth of ...

The third confirmed interstellar body to visit our solar system is being revealed as a time capsule from a very different ...