"Though our Mars orbiters continue to make impressive contributions to Mars science, it's always extra exciting to see them ...

For millions of years, a fragment of ice and dust drifted between the stars—like a sealed bottle cast into the cosmic ocean.

NASA and the European Space Agency are tracking the 3I/ATLAS interstellar object as it travels past Mars on its way toward the Sun and through the solar system.

Every once in a while, our solar system receives a fleeting visitor from the depths of our galaxy. On July 1, 2025, NASA’s ...

In a new study published on arXiv, a team determined that the interstellar comet could be older than the solar system's Sun. Researchers believe that the comet originated in the Milky Way Galaxy, but ...

The interstellar comet 3I/ATLAS does not come from our corner of the Milky Way, and may be a time capsule of the early galaxy ...

The new images of interstellar 3I/ATLAS were captured by NASA Perseverance Rover on October 4, 2025 as the mysterious object flew past Martian surface. Since its discovery on July 1, ...

NASA's Perseverance Mars rover may have captured an image of interstellar comet 3I/ATLAS streaking across the sky above the ...

New photos of the mysterious interstellar object 3I/ATLAS taken from Mars have reignited theories that it could be an alien spacecraft.

The interstellar comet 3I/ATLAS, with its massive size, record speed, and mysterious Milky Way origin, has scientists like Avi Loeb speculating if it's alien technology ...

Observing 3I/ATLAS in this active phase will give some of the clearest insights yet into the mystery of interstellar comets.

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.