Well, stars grow by accreting material from their immediate environs of a gravitationally collapsed cloud of molecular gas. Yet, paradoxically, they are able to spit some material back out in fast, ...

A ring of dust and gas orbiting the star acts as a belt, cinching the expanding nebula into an hourglass shape. See the full advent calendar here, where a new image will be revealed each day until ...

The nebula is about five light-years wide ... This Hubble image reveals the true shape of MyCn18 to be an hourglass with an intricate pattern of "etchings" in its walls. This picture has been ...

This Hubble's image of gas and dust in the outskirts of the Tarantula Nebula extends a better understanding of how dust contributes to the formation of new stars and planets. The image depicts a ...

The nebula is known as Hen 2-104, located several thousand light years from the earth. It appears to have two nested hourglass-shaped structures that were sculpted by a whirling pair of stars in a ...