A so-called "planetary nebula" is a confusing misnomer because these clouds have nothing to do with planets. As a medium-size star nears the end, it puffs out into a red giant — about 100 to 1,000 times its original size — eventually engulfing the space around it, including any nearby worlds.
Олег Давыдов (Редактор отдела «Интернет и СМИ»)
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近日，广东深圳的龙先生在自己的博客上发布了两篇文章，称自己为80岁老母亲的手机设置了三重防诈骗的“防火墙”，但在诈骗分子的精心谋划下，母亲账上的95万元在7天内分3次被转走。
Source: Computational Materials Science, Volume 267