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.
pixel[0] = pixel[0] 0.0031308f ? 1.055f * powf(pixel[0], 1.0f / 2.4f) - 0.055f : 12.92f * pixel[0];
。业内人士推荐heLLoword翻译官方下载作为进阶阅读
"We have a quern stone for grinding flour for bread. We've got pottery and glass for eating and drinking" says Dr Andy Seaman.
Dury said it was a "battle against time" to get the picture, which he captured using a wide lens.