On August 24, 2006, in Prague, members of the International Astronomical Union gathered for the final day of their General ...

For decades, scientists and the general public have argued over the astronomical status of beloved dwarf planet Pluto. In the latest salvo, NASA Administrator Jared Isaacman said that he was “very ...

NASA's New Horizons spacecraft spent more than nine years traveling through space before revealing Pluto in extraordinary ...

Twenty years after Pluto became a dwarf planet, people are still fighting over its status. Experts explain why the debate feels so personal.

Since it was stripped of planetary status, Pluto’s defenders have been fighting the decision – and they’re only getting more passionate Twenty years ago, Pluto got demoted. After a vote by the ...

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From possible ice volcanoes to twirling moons, NASA’s New Horizons science team is discussing more than 50 exciting discoveries about Pluto at this week’s 47th Annual Meeting of the American ...

Twenty years after Pluto lost its planetary status, the debate continues as scientists still disagree over what defines a planet.

Scientists have detected evidence of landslides on Pluto for the first time. A paper published in the journal Icarus reports that images taken by the New Horizons spacecraft during a flyby revealed ...

For the first time since its discovery in 1920, Pluto is entering the outer solar system—a journey that’s slowly thinning out its atmosphere. Reading time 3 minutes Pluto’s orbit around the Sun is a ...

Why are there moons at the edge of the solar system that cause their rotation axes to fluctuate as if ignoring the laws of ...