There could be a ninth planet in our solar system that's lying in wait to be discovered - and no, it's not Pluto. Our solar ...

Astronomers may have uncovered a massive hidden planet far beyond Neptune, using decades-old infrared data. The object’s ...

This results in a composition that is “unexpectedly chaotic and turbulent.” “These new Hubble images show that planet nurseries can be much more active and chaotic than we expected,” Kristina Monsch, ...

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The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...

Hubble spots white dwarf star 'snacking' on chunk of Pluto-like object. The NASA/ESA Hubble Space Telescope has spotted a ...

Young star systems are a place of violent collisions. Rocks, comets, asteroids and larger objects carom off one another and ...

Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

In 2004, a bright point of light in the debris disk surrounding Fomalhaut was thought to be an exoplanet. But the spot ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in direct exoplanet ...

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