Nebula.
It is a nebula.
A nebula is a large gaseous cloud found in space. Nebulas are made up of gas, dust, and plasma, and can be remnants of exploded stars or regions of new star formation. They are often exceptionally beautiful and serve as the birthplace of stars.
Venus is not a gaseous planet. It is a rocky planet covered by cloud.
protogalactic cloud
A large gaseous cloud found in space is often referred to as a nebula. These clouds are composed primarily of hydrogen, helium, and other ionized gases, and they can serve as regions for star formation. Some nebulae are remnants of dead stars, while others are sites where new stars are born. Their stunning colors and shapes are often the result of the interaction of light from nearby stars with the gas and dust in the cloud.
Jupiter
smelly gas
saturn
Large, gaseous and cold
The Large Magellanic cloud.
star
possible for a VERY large planet, but unlikely.