Scientists say that 3I/ATLAS has likely been traveling through interstellar space for a long time. Based on how fast it was ...

Amateur images of 3I/ATLAS show unusual structure that fuels debate, but scientists say spectral data still supports it being ...

Speculation about extraterrestrial life has rarely been far from public debate, and one Harvard researcher continues to push ...

New details emerge about the interstellar comet 3I/ATLAS. Its tail appears unusually thin and straight, unlike typical comets ...

Amateur observers and social media users sparked viral claims that interstellar object 3I/ATLAS and comet C/2025 R2 (SWAN) ...

On October 30, 2025, the radial acceleration component A1—normalized at a heliocentric distance of 1 au—was listed as 1.6×10⁻⁶ ...

Within the diameter of Jupiter’s orbit around the Sun, the coincidence between the perijove distance and the Hill radius has a statistical likelihood smaller than 0.00004. In case the ...

I/ATLAS is traveling away from us into deeper space, last scramble for data raises question about the interstellar object.

NASA says interstellar object 3I/ATLAS looks like a comet, but odd behaviour has sparked debate among scientists who believe ...

An asteroid named YR4 is on a potential collision course with the moon, with NASA estimating a 4% chance of impact in 2032.

Tomorrow marks the beginning of the largest and most extensive planetary-defense exercise in human history — an international ...

The Dec 19 close approach of 3I/ATLAS is safe! ESA confirms the interstellar comet is 270 million km away, thanks to a Mars ...