A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the James Webb ...

Astronomers have taken a huge leap towards discovering habitable worlds, and the world now eagerly anticipates a rocky planet orbiting a faint star 40 light-years from home. Scientists are homing in ...

The Habitable Worlds Observatory is poised to tell us whether Earth-like planets are common—if it can get off the ground ...

A shy space rock is making its lunar debut. Astronomers believe they’ve discovered another so-called quasi-moon of Earth, though it’s likely been circling undetected in near space for decades. Dubbed ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research. The newly ...