在"英语"词典里nebulae}的意思

星云是尘埃，氢，氦和其他电离气体的星际云。 原来，星云是任何漫射天文物体的名称，包括银河系以外的星系。 例如，仙女座星系被称为仙女座星云，之前，由Vesto Slipher，Edwin Hubble等人在20世纪初证实了星系的真实性质。 星云通常是恒星形成的地区，如鹰星云。 这个星云描绘在美国航空航天局最着名的图像之一，“创造的支柱”。 在这些地区，瓦斯，灰尘和其他材料的形成“聚集在一起，形成更大的质量，从而吸引更多的物质，最终将变得足够大以形成星星。 然后，剩余的材料被认为形成行星和其他行星系统物体。 A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, nebula was a name for any diffuse astronomical object, including galaxies beyond the Milky Way. The Andromeda Galaxy, for instance, was referred to as the Andromeda Nebula before the true nature of galaxies was confirmed in the early 20th century by Vesto Slipher, Edwin Hubble and others. Nebulae are often star-forming regions, such as in the Eagle Nebula. This nebula is depicted in one of NASA's most famous images, the "Pillars of Creation". In these regions the formations of gas, dust, and other materials "clump" together to form larger masses, which attract further matter, and eventually will become massive enough to form stars. The remaining materials are then believed to form planets, and other planetary system objects.