Astronomers have likely witnessed a planet forming in real time, seen inside a spiral arm of the HD 135344B protoplanetary ...

Astronomers believe they have captured an image of a planet in the act of forming, something that has never before been ...

Scientists have confirmed a potentially habitable fifth planet in the nearby L 98-59 system, revealing a diverse collection ...

Astronomers may have caught a still-forming planet in action, carving out an intricate pattern in the gas and dust that ...

Astronomers have discovered a bright signal, embedded deep in a young disc, that is likely young planet HD 135344B still ...

A newly discovered exoplanet may offer astronomers a rare look at how planetary evolution unfolds, revealing the processes that transform young, hydrogen-rich worlds into either gas-shrouded ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

Peering through a cosmic keyhole at distant baby star, astronomers may have opened a new window on the deep past of our own ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

A team of astronomers from Taiwan has uncovered promising evidence suggesting the existence of Planet 9, a hypothesized ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.