Astronomers have spent years searching for a possible hidden giant planet far beyond Neptune. Unusual orbits among distant Kuiper Belt objects have fueled the Planet Nine theory, but recent ...

A rare celestial event will feature Venus, Jupiter, and Mercury appearing close together in the June sky. Venus and Jupiter will first appear together in a conjunction starting Tuesday, June 9.

Many of us are old enough to have grown up with the idea of nine planets orbiting the Sun. In 2006, however, a controversial decision in the astronomy community resulted in the official list being cut ...

The Earth-size planet HD 137010 b has a ‘50% chance of residing in the habitable zone’ of its sun-like star, scientists say Astronomers have discovered a potentially habitable new planet about 146 ...

Far smaller and closer to the Sun than it should be, Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission arriving in 2026 might ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

EXCLUSIVE: Captain Planet and the Planeteers‘ long-awaited live-action adaptation is getting a big boost — and a major twist. In a competitive situation, Netflix has landed for development Captain ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...

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Astronomers have found the clearest evidence yet that life might exist beyond the solar system, from the atmosphere of a planet 124 light years away from Earth, setting off rare excitement – tinged ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

Robbie has been an avid gamer for well over 20 years. During that time, he's watched countless franchises rise and fall. He's a big RPG fan but dabbles in a little bit of everything. Writing about ...