A mysterious new world may be hiding in the outer reaches of our solar system. According to arecent study published on arXiv by Amir Siraj of Princeton University and colleagues, a previously unknown ...

Does our solar system have a mysterious ninth planet? The discovery of a new dwarf world suggests not. It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is ...

Scientists are scratching their heads over a recent James Webb Space Telescope (JWST) discovery that looks more like a piece ...

Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, icy, egg-shaped planet in the far reaches of our solar system, beyond Neptune ...

Scientists looking into the cause of mammoth dust storms that can sweep across nearly all of Mars think they’ve discovered a key factor behind these rollicking storms. The driving forces behind ...

A surprisingly low reservoir of methane may explain how a planet around a nearby star grew weirdly puffy, according to new observations from the James Webb Space Telescope (JWST). The finding shows ...

Skeleton Crew fans already have some big theories about Star Wars' mysterious new planet. Taking place at the same time as The Mandalorian, the show follows Wim (Ravi Cabot-Conyers), Fern (Ryan Kiera ...