What causes dust and gas to come together in space?

The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.

How can there be gravity in a cloud of tiny particles?

As the cloud gets smaller, the atoms of the gas get closer together and begin to bump into each other more, which heats them up. The cloud keeps contracting and getting hotter, until the pressure from the heat (which pushes the atoms apart) balances the force of gravity (which pulls the atoms together).

Is there gravitational force between dust particles?

If we allow the gravitational law on the dust particles , we have found that the dust particles also have mass so it also feels gravitational force. It remains in the air current because it is carried by air due to its lightweight. The gravitational forces act along the line joining the centre of mass of particles.

What are dust clouds in space made of?

Cosmic dust is made of dust grains and aggregates into dust particles. These particles are irregularly shaped, with porosity ranging from fluffy to compact.

How did gravity help form our solar system?

Solar system formation began approximately 4.5 billion years ago, when gravity pulled a cloud of dust and gas together to form our solar system.

What object is formed from gas and dust particle which are pulled together by gravity and no nuclear fusion has happened yet?

Gravity can pull some of the gas and dust in a nebula together. The contracting cloud is then called a protostar. A protostar is the earliest stage of a star’s life. A star is born when the gas and dust from a nebula become so hot that nuclear fusion starts.

Does the force of gravity exists between two astronauts in space?

Answer : Yes, the force of gravitation exists between two astronauts in space because: Every object in the universe whether small or large exerts a force on every other object.