Galilean

Galileans are bulky planetoid aliens from the planet Keplorr.

Anatomy
Galileans are large, bulky aliens with rocky skin, a reddish-orange core on their chest, four reddish-brown fingers, three grey toes, and teeth that are also made of rocks.

Although Galileans are traditionally reddish-brown, they come in other colors such as magenta and violet.

Powers/Abilities
Galileans can manipulate the gravity of other beings and objects, making them either lighter than air or incredibly heavy. Their gravitational aura comes in different colors, including white, green, red, and mint green.

Galileans can retract their limbs and manipulate their own gravity, allowing themselves to assume a planetoid form and levitate. They can also make objects revolve around them while in their planetoid form.

Galileans possess enhanced strength and durability due to their rock-like skin.

Due to being living planets, Galileans can survive in the vacuum of space.

Weaknesses
If a Galilean takes a large amount of damage to their core, they could meltdown and explode, much like an actual planet.

A Galilean's large size makes fitting in smaller spaces rather difficult.

Despite their enhanced durability, they can feel a lot of pain from a Talpaedan's drill.

Sudden changes of mass can throw Galileans off their orbit.

Like other organic beings, Galileans can be erased from existence by a Chronosapien Time Bomb.

Behavior
According to Max Tennyson, Galileans are said to be wise and patient.

History
Galileans do not live on planets, because they themselves are tiny planets. They live in space and orbit their sun before eventually orbiting Keplorr at some point in their life cycle.

Omnitrix Transformation
The Omnitrix's Galilean representative is named Gravattack, who first appeared in the Omniverse episode "A Jolt From the Past". Gravattack solely appears in Omniverse.

The Ben Tennyson of Dimension 23 has an equivalent of Gravattack named Orbit Man, who was confirmed to exist in the Omniverse episode "It's a Mad, Mad, Mad Ben World: Part 2".

Gravattack has also been used by Albedo and Bad Ben.