Far beyond Neptune, NASA discovered something on Pluto that scientists still struggle to fully explain. What was once thought ...

Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 billion miles past Pluto, covered in unidentified organic molecules. This ...

If you have questions you would like answered on Astro Brief, email them to Dr. Mike Reed at mikereed@missouristate.edu. Astro Brief is a podcast collaboration between KSMU, the Missouri Space Grant, ...

Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for being a planet, putting Pluto into the new category of dwarf planet ...

He also said that NASA is working on research papers that they would like to bring forward within the scientific community to revisit the discussion.

NASA chief Jared Isaacman’s call to restore Pluto’s planetary status has reignited a long-running scientific debate over ...

Is Pluto a planet? NASA Administrator Jared Isaacman told Congress on Tuesday that Pluto should be recognized as a planet, 20 years after its status changed.

Pluto was downgraded from a planet to a dwarf planet in 2006 by the International Astronomical Union. The main reason for Pluto's demotion is that it's not able to "clear its orbit of debris." Other ...