Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

In a new study published in The Astrophysical Journal, a group of researchers from the University of Colorado Boulder ...

A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but ...

This rogue star has been traveling the Universe. And now, it's finally entering our Solar System. But this isn't just any ...

Scientists find that two hot stars passed near our solar system 4.4 million years ago, altering nearby interstellar clouds.

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

This artist’s illustration provided by the European Southern Observatory shows an exoplanet orbiting around two brown dwarfs, celestial objects that are lighter than stars, but heavier than gas giant ...

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in ...

Learn more about brown dwarfs, the cosmic misfits that blur the line between planet and star.

A group of astronomers from the US, Europe, Chile and South Africa have determined that 70,000 years ago a recently discovered dim star is likely to have passed through the solar system’s distant ...

Burst from M-dwarf star could be powerful enough to strip the atmosphere of any planets that orbit it, with implications for ...