Pluto once held its place proudly as the ninth planet in our solar system,a distant, icy world on the edge of the cosmic frontier. But in 2006, everything changed. This in-depth explainer unpacks the ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

A new framework urges leaders to see the world as PLUTO: polarized, liquid, unilateral, tense and omnirelational, and to ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

These computer-generated maps of Pluto at different longitudes were made from the current best images of the planet, taken in 2002-2003 by the Hubble Space Telescope.

Mercury will make an opposition to Pluto retrograde, creating a push and pull between the need for bold self-expression and ...

Spiritual Neptune, on the other hand, is fluid and esoteric. As the planet of illusions and the subconscious, Neptune’s sense ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its status as the ninth planet in our Solar System.

The experimental director Jem Cohen’s latest is an uncategorizable film about astronomers and humanity and love and the stars ...

Dan Weedman was a senior official at NASA and the National Science Foundation from 1992-2002, including serving as the head ...