It is sometimes called the Solar nebula.
It is called a stellar nebula.
Solar nebula.
The outer Oort cloud. (The inner Oort cloud is believed to be disk-shaped.)
The formation of the Solar System is estimated to have begun 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud.[1] Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.
"Our solar system." The "part of our galaxy" that's in our solar system is the solar system.
Voyager 1 and Voyager 2 have both left the heliosphere, but neither has left the solar system. The edge of the solar system is considered to be the outer boundary of the Oort Cloud, The exact width of the Oort Cloud is not known, but its estimated that it would take Voyager 2 about 300 years to reach the inner boundary of it. To reach the outer boundary of the Oort Cloud, truly leaving the solar system, would take Voyager 2 something like 30,000 years.
It was a nebula.
It is sometimes called the Solar nebula.
The planets in the solar system are formed by fragment of the original cloud.
Astronomers Believe That The Solar System Began As A Huge Cloud Of Dust And A Gas Called ''NEBULA''
The solar system formed from the gravitational collapse of a cloud of interstellar gas.
Solar nebula.
The Solar System formed from a cloud of gas, that collapsed.
A cloud of gas and dust.
Yes, the solar system including our Sun and planets is believed to have formed from a large disk of gas and dust called a proto-disk or proto-solar disk, due to gravitational effects. It is currently thought that several stars formed from the same cloud as our Sun.
planetary
That is called an accretion disk or a proto-Solar system.
The celestial bodies of our solar system are believed to have formed from the solar nebula. The solar nebula was a giant cloud of dust and gas that was left behind after the formation of the sun.