In paragraph 10, Gagarin describes the contrast between __________.
10 Half an orbit after launch, over the vast Pacific Ocean, Vostok glided serenely into the shadowed side of the planet following a beautiful sunset. Gagarin was surprised by how quickly darkness came on, a huge difference from the blindingly bright sunlight. He looked down at the Earth’s surface but could see no lights, so surmised he must be traveling over water. As he looked to the horizon, more stars appeared than he had ever seen before, brighter and sharper than when observed from Earth. “Of all the nights I had seen in my lifetime,” Gagarin recounted, “none was remotely comparable to night in space. I have never forgotten it. The sky was blacker than it ever appears from the Earth, with the real, slate-blackness of space.” It would be the shortest night of his life, however. All too soon, Gagarin saw a vivid orange curve on the horizon, “a very beautiful sort of halo,” which gradually changed to a multitude of colors, then blue as the blinding sun rose again, faster than he had imagined it would.