Planets

Planets

Cool as a Jupiter

New-found, far-out planet could be similar to local gas giants.

Planets

One ring around them all

Introducing the solar system's largest known ring around a planet.

Planets

Either Martians or Mars has gas

Martian methane points to possible life on the Red Planet.

Planets

A new look at Saturn’s rings

New information from space missions suggests Saturn's rings may be older and have more mass than scientists thought.

Planets

Explainer: What is a planet?

Over the years, definitions have changed several times.

Planets

The trouble with Pluto

The traditional view of the solar system is out of date. Depending on who you talk to today, the answer to how many planets there are could be eight, 12, or even 208 and counting.

Planets

The two faces of Mars

A single impact might explain why the Red Planet’s surface looks smoother in the north and rugged and rocky in the south.

Planets

Icy red planet

Mission to Mars finds water ice.

Planets

Pluto, plutoid: What’s in a name?

In 2006, an international organization changed the classification of Pluto from planet to "dwarf planet."

Planets

Mercury unveiled

A new mission to Mercury is revealing surprising, never-before-seen details about the innermost planet.

Planets

Venus unveiled

A recent mission to Venus has revealed new information about that planet's watery past.

Planets

Wet or Not?

New evidence lowers the chances of finding water on Mars.