Humanity's fascination with the unknown is a timeless impulse, rooted in curiosity and the desire to push boundaries, uncover mysteries, and open doors to new frontiers. What were once represented by ...

To reach Earth’s closest star system, Alpha Centauri, scientists are building a laser-powered spacecraft. To pull off ...

A generation ship is a hypothetical spacecraft designed for long-term interstellar travel, potentially lasting centuries. The concept involves an initial crew living, reproducing, and dying aboard the ...

NASA's Mars Reconnaissance Orbiter used its camera to take high-resolution images of interstellar object 3I/ATLAS. We have ...

A Harvard physicist who sounded the alarm earlier this month about a rare interstellar object passing through our solar system — suggesting it might be more than a comet — now says it could even be a ...