A nebula (the Latin word for cloud) is a cloud of gas and dust in space and many can be found in our galaxy as well as in galaxies across the universe. Because nebulas are involved in the birth and death of stars, these regions of space are important to astronomers seeking to understa...
A comparison is made between cold dust clouds, where presumably gas phase processes dominate the chemistry, and regions of high mass star formation such as Orion where both shocks and evaporation of dust grain mantles may play a role. In dust clouds, carbon rich molecules often show enhanced ...
In the portion of theOrion nebulapictured, the telescopes' infrared vision reveals a host of embryonic stars hidden in gas and dust clouds. These stars are at the very earliest stages of evolution. A star forms as a clump of this gas and dust collapses, creating a warm glob of material f...
This view of the Andromeda galaxy is rather unique because it also features clouds of gas and dust that lie inside our own Milky Way galaxy. Astrophotographer Rogelio Bernal Andreo took this image from California in December 2016. In an email to Space.com, Andreo said the image may be ...
Astronomers have argued for years about how stars condense out of the diffuse clouds of dust and gas called nebulas. 由尘埃和气体构成的云团被称为星云。有关恒星如何从呈弥漫状态的星云凝缩而来,天文学家们争论了很多年。 huzhangao.blog.163.com 4. Occasionally , these large chunks of ice smash int...
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In the portion of the Orion nebula pictured, the telescopes’ infrared vision reveals a host of embryonic stars hidden in gas and dust clouds. These stars are at the very earliest stages of evolution. A star forms as a clump of this gas and dust collapses, creating a warm glob of materia...
Molecular cloudsare massive clouds of gas and dust out of which stars form. They’re called molecular clouds because they’re mostly molecular hydrogen, though they can contain many different compounds. Though the clouds are filamentary in nature, they do form clumps of greater density that someti...
In subject area: Physics and Astronomy Collapsing clouds refer to the process where a cloud of gas and dust undergoes gravitational collapse, leading to the formation of dense cores that eventually give rise to stars or stellar systems.