Four engineers who had helped develop Java, an Internet programming language, announced that they had left Sun to form their own company.

The giant colorful planet holds clues to help us understand how the Sun and planets formed more than 4.5 billion years ago.

The Sun had formed from a contracting cloud of gas - a protostar.

We would barely recognize our own Milky Way galaxy, if we could see it five billion years ago when the Sun formed, he said.

Earth's Sun formed about five billion years ago.

The Sun formed about 4.6 billion years ago from the gravitational collapse of a region within a large molecular cloud.

However, since the Sun formed, some of the helium and heavy elements have gravitationally settled from the photosphere.

This indicates that one or more supernovae must have occurred near the location where the Sun formed.

Laplace thought that the Sun formed before the planets did, perhaps by some cosmic aggregation process like Kant's.

For example, since the Sun formed, the helium and heavy elements have settled out of the photosphere by diffusion.