The Latest Breaking News from Solar System

Scientists from the European Space Agency have significantly narrowed down the trajectory of the interstellar visitor 3I/ATLAS thanks to data from the alien comet's recent flyby of Mars, allowing for more accurate future observations.

Scientists debunk alien claims about interstellar comet 3I/Atlas, explaining its rare chemistry, deep-space age, and high speed as it passes through the Solar System.

The rare interstellar comet 3I/ATLAS, only the third ever seen, is baffling scientists with a bizarre 'anti-tail' that points towards the Sun.

Interstellar comet 3I/ATLAS, only the third of its kind ever detected, is speeding away from the Sun. Here's how to watch its livestream as it exits our solar system.

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the darkest of all?

The solar system is moving through space over three times as fast as estimated, calling into question our best model of the universe and its evolution.

The interstellar object 3I/ATLAS has prompted Harvard physicist Avi Loeb to suggest it could be 'artificial'. Loeb argues that if December 2025 observations fail to show a gas cloud consistent with mass loss, the acceleration implies propulsion.

C/2025 K1 (ATLAS) has broken into three distinct pieces following its closest approach to the sun on Oct. 8.

Envision a time when hundreds of spacecraft are exploring the solar system and beyond. That’s the future that NASA’s ESCAPADE, or Escape and Plasma Acceleration and Dynamics Explorers, mission will help unleash: one where small, low-cost spacecraft enable researchers to learn rapidly, iterate, and advance technology and science.

Astronomers have ruled out alien origins for interstellar visitor 3I/ATLAS, confirming it's a natural comet—not an extraterrestrial spacecraft—while revealing clues about its ancient birthplace beyond the solar system.

A nearby star has just been caught throwing a tantrum – and it could rewrite what we know about the potential for life in the universe.