The Latest Breaking News from Solar System

NASA declares no threat from interstellar comet 3I/ATLAS but launches a secret planetary-defence mission as the object exhibits unusual behaviour near the Sun.

The interstellar object 3I/ATLAS has ignited debate on whether it's a rare comet from a distant star or an alien probe.

Small icy moons in the outer reaches of our solar system may hide boiling oceans underneath their surfaces, a new study finds.

The interstellar comet 3I/ATLAS challenges physics with a missing dust tail, a forward anti-tail, and strange composition.

Uncover the secrets of Comet 3I/ATLAS, the rare interstellar visitor of 2025. Learn its alien origins, ancient chemistry, and how to spot it before it vanishes.

Comet C/2025 K1 (ATLAS) has shattered into at least three glowing fragments in the November sky, offering astronomers a rare chance to study a pristine comet breaking apart in real time.

Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the hypothesis. Now a team of astromers in France, Germany and the United States have analysed ancient lunar and terrestrial rocks to trace where Theia came from.

ESA's ExoMars orbiter has tracked interstellar comet 3I/ATLAS at unprecedented speed, refining its trajectory and offering vital lessons for planetary defence.

Is 3I/ATLAS alien tech or just a comet? Explore the explosive backlash over NASA's blurry images, Avi Loeb's list of 12 anomalies, and the new data from Indian scientists that challenges the extraterrestrial narrative.