The large cloud of gas and dust from which the Sun and planets condensed 4.6 billion years ago.
gaseous cloud from which, in the so-called nebular hypothesis of the origin of the solar system, the Sun and planets formed by condensation. In 1755 ... [5 related articles]
The rotating cloud of gas and dust that began to collapse about 5 billion years ago to form the Solar System.
The cloud of dust and gas out of which the Solar System was believed to have formed about 5 billion years ago.
The large cloud of gas from which the Sun and planets were formed 4,600 million years ago.
The large cloud of gas and dust from which the Sun and planets condensed 4.6 billion years ago.