A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

The concept of Planet X, or Planet Nine, has captivated astronomers for decades. This hypothetical planet, theorized to be ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

Astronomers discover a network of cosmic tunnels linking our solar system to distant galaxies, revealing a dynamic and ...

According to Brown, Planet X could be the fifth most massive planet in the solar system, similar in composition to icy Neptune and orbits the sun every 10,000 years. Finding this planet is easier ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

"Some of the extreme ultraviolet light above active regions flickers erratically for a few hours before a solar flare," ...

Astronomers believe that our solar system may still hold surprises, with ongoing efforts to find a hidden ninth planet, often referred to as Planet Nine or Planet X. If confirmed, this discovery ...

“We can wait another year, or we can get started now,” the company wrote in a post on X. “This is not our ... clues about the history of the solar system, including what Earth was like ...