The mysterious interstellar visitor in our Solar System has shifted in a way that has never been seen among comets before.

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

Scientists like Avi Loeb spotlight anomalies hinting at alien tech as it hurtles past Mars on 3 October. NASA & ESA track ...