Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

Analysis of ocean sediments has surfaced geochemical clues in line with the possibility that an encounter with a ...

Scientists have uncovered microscopic clues buried deep in the ocean floor that could support a bold theory — a comet ...

Microscopic grains of alien dust buried in the sediment at the bottom of the ocean could be evidence of a comet that exploded ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

A new telescope built to to track fast-moving space objects caught a comet from beyond the solar system moving across the sky ...

The strange 3I/ATLAS comet that was recently discovered to be speeding through our solar system could actually be the work of ...

"It could represent some of the oldest and most pristine water ever observed, formed in another planetary system and ...

Comet 31/ATLAS is only the third interstellar object to ever be observed whizzing through the Solar System. While its origins ...

The comet's approach toward Earth coincides with a total solar eclipse on April 8. Around that time, 12P/Pons-Brooks will be at or near perihelion, the point during orbit when it's closest to the sun.

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar ...