Pluto

The dwarf planet Pluto continues to amaze. This is what you need to know about its active icy volcanoes, subsurface ocean, and mountains of frozen water.

Latest in Pluto

Pluto is not a planet but a dwarf planet. Outline of its corona on black taken by the NASA New Horizons probe.

Science

Pluto is not a planet because of one small technicality Pluto is not a planet because of one small technicality

By Charlie Wood

a gray rocky surface of a planet with blue highlighted regions showing potential past volcanic activity

Science

Pluto’s icy volcanoes may have once belched ‘antifreeze lava’ Pluto’s icy volcanoes may have once belched ‘antifreeze lava’

By Kate Baggaley

NASA Is Trying To Figure Out What A Mysterious Object Near Pluto Is

Science

NASA Is Trying To Figure Out What A Mysterious Object Near Pluto Is NASA Is Trying To Figure Out What A Mysterious Object Near Pluto Is

By Christine Jun

NASA photo of Pluto

Science

Frigid Pluto may have had a toasty start Frigid Pluto may have had a toasty start

By Kate Baggaley

How Pluto keeps its secret ocean warm

Science

How Pluto keeps its secret ocean warm How Pluto keeps its secret ocean warm

By Neel V. Patel

Neptune and Triton

Science

The outer solar system awaits—but getting there may not be as easy as we’d like The outer solar system awaits—but getting there may not be as easy as we’d like

Science

Pluto may be made up of a billion comets Pluto may be made up of a billion comets

By Neel V. Patel

Science

The mysterious object NASA is visiting in 2019 might have its very own moon The mysterious object NASA is visiting in 2019 might have its very own moon

By Mary Beth Griggs

Pluto New Horizons

Science

Pluto is way cooler than it should be, and now we might know why Pluto is way cooler than it should be, and now we might know why

By Mary Beth Griggs

Cassini just smashed into Saturn’s atmosphere. What comes next for solar system exploration?

Science

Cassini just smashed into Saturn’s atmosphere. What comes next for solar system exploration? Cassini just smashed into Saturn’s atmosphere. What comes next for solar system exploration?

By Mary Beth Griggs

NASA just caught a glimpse of the mysterious object New Horizons will reach in 2019

Science

NASA just caught a glimpse of the mysterious object New Horizons will reach in 2019 NASA just caught a glimpse of the mysterious object New Horizons will reach in 2019

By Mary Beth Griggs

Science

Don’t get too hyped about ‘Planet 10’ just yet Don’t get too hyped about ‘Planet 10’ just yet

Pluto New Horizons

Science

Pluto might be a planet again. Let’s talk about why this matters. Pluto might be a planet again. Let’s talk about why this matters.

By Sara Chodosh

This is what it would look like to land on Pluto

Science

This is what it would look like to land on Pluto This is what it would look like to land on Pluto

Science

Pluto’s frozen heart may hide an ocean inside Pluto’s frozen heart may hide an ocean inside

Weird Exoplanet

Science

This Could Be The Strangest Exoplanet Found Yet This Could Be The Strangest Exoplanet Found Yet

By Ryan F. Mandelbaum

Beyond Pluto: Meet The New Horizons Spacecraft’s Next Target

Science

Beyond Pluto: Meet The New Horizons Spacecraft’s Next Target Beyond Pluto: Meet The New Horizons Spacecraft’s Next Target

By Shannon Stirone

Our Solar System Has A Ninth Planet

Science

Our Solar System Has A Ninth Planet Our Solar System Has A Ninth Planet

By Shannon Stirone

What We’ve Learned From The Pluto Flyby

Technology

What We’ve Learned From The Pluto Flyby What We’ve Learned From The Pluto Flyby

By Edited and condensed by Sophie Bushwick

This is our best image of Pluto yet

Science

Pluto Has An Atmosphere, Moons, And Maybe Geological Activity. Can We Call It A Planet Now? Pluto Has An Atmosphere, Moons, And Maybe Geological Activity. Can We Call It A Planet Now?