For the first time in the history of space exploration, a robot on the surface of another planet looked up and photographed a visitor from beyond our solar system. In late May 2026, NASA’s ...

When the European Space Agency's ExoMars Trace Gas Orbiter pointed its surface-imaging camera deep into space on October 3, 2025 — the first time any spacecraft orbiting another planet had ever ...

China’s Tianwen-1 orbiter captured a faint but remarkable view of 3I/ATLAS as the interstellar comet raced past Mars. The images reveal its tail and glowing coma, offering scientists a glimpse of ...

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...

Interstellar comet 3I/ATLAS contains exceptionally high levels of methanol, suggesting it formed under conditions very different from those that shaped most comets in our solar system. ALMA also ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph instrument. Credit: NASA/James Webb Space Telescope This result is especially ...

Astronomers have used the European Southern Observatory's Very Large Telescope (ESO's VLT) to study the composition of 3I/ATLAS, the brightest interstellar object ever seen, in detail. By measuring ...