Tar Ball

Tar Ball is a sticky, goopy, and usually low-threat planet made up almost entirely of Tar. It even rains from the sky. They are rich in Trianglium Ore.

If you're into everything tar, then this is your obvious place to go. Tarpit Chests, Tar blocks, and even 4 different types of Tar monsters are all located upon this planet. If you're more into Oil, however, then grab as much Black Tar and Tarry Stone as you can. These can be extracted into that precious black gold.

Tar Balls can be found orbiting Binary, Blue, Dying and Red Stars.

Codex Description

 * A Tar Ball with a semi-livable surface. Encumbering bodies of liquid with abundant oil litter the surface. Recommend: Heat protection
 * A tar-covered world with breathable atmosphere. Hazardous sticky pools of tar will make for slow travel. Recommend: Heat protection
 * A Tar Ball with abundant oil sources detected on and below the surface. Some sort of tar protection could prove useful. Recommend: Heat protection

Exploration and Dangers
When exploring these planets, tar is your friend. The blocks are easy to mine through and won't pose any threat to you. The liquid may slow you down, but protection from such is optional. The same goes for the weather, which can only be dangerous to blocks and plants that aren't protected by a shield generator.

Monsters spawn frequently on Tar Balls, which could prove annoying to the exploring player. Each one of these creatures except for the Pyropod is incapable of flight, so the majority of these tar-loving lifeforms can just be avoided or defeated without much of a problem.

The main danger of Tar Balls is their heat. As dangerous as this may seem, this biome heat can easily be avoided with the light fire resistance provided by a Cooling EPP or Heat Shield I Augment, along with various armor types. Eating a Quell Stem for its temporary heat resistance can prove useful for players planning to be on these worlds for a short amount of time.

Trivia

 * Tar Balls are essentially planet-wide versions of the Tar Pits sub-biome. Almost everything found in these lesser biomes can be found in Tar Balls, but Tar Balls provide many more elements that the sub-biome cannot provide.