A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

For years, astronomers have searched the outer reaches of our solar system for Planet 9, a theoretical planet that could ...

Far beyond Neptune, astronomers believe a mysterious giant planet is hiding in the darkness. Known as Planet 9, this world ...

It all unfolded at around 9:30 a.m. Wednesday morning at the Planet Fitness facility located at 6433 Orchard Lake Rd., police ...

A recent study hints at a previously unknown Earth-sized planet, dubbed Planet Y, potentially influencing gravitational distortions in the outer solar system.

Elon Musk hopes to expand SpaceX Starship operations in Florida as he continues to work toward launching to Mars in 2026.

A man was arrested Wednesday morning after he allegedly attacked the staff of a Planet Fitness in West Bloomfield Township.

Could humans be heading to Mars in the 2030s? Here's how Elon Musk and SpaceX plan to launch Starship on a mission to colonize the Red Planet.

A rare black moon darkens the sky on Aug. 23, 2025, followed by a close encounter between the young crescent and Mars just ...

Although faint, Comet Wierzchoś can be picked up by larger scopes as it passes near the planetary nebula NGC 6058 this ...

On Episode 174 of This Week In Space, Rod Pyle and and Tariq Malik are joined by Lynn Harper to discuss some of the amazing ...