Schefter, Jim
One of the distinguishing features of a comet is that most of them develop a tail—which begins as a fuzzy, teardrop-shaped coma—when they come close to the Sun. Away from the Sun, comets are frozen celestial bodies that are hard to detect. However, as a comet comes closer to the S...
Comets are primarily made of dust, rock, and ice, and as they approach the sun they warm up and give off water and dust particles (which form comets’ distinctive tails). We are used to observing average-sized comets which eject gases, giving the comet a tiny kick and changing its traje...
Most nebula are primarily made of gas, which is able to glow with its own light, creating the colorful displays with which we are familiar . But other nebula — such as the so-called "dark nebula" — are much dustier in their composition, and rather than glowing this dust has...
Nice as it is, the Mars-Saturn-Antares lineup is only the warm-up for the big event: the closest conjunction of the two brightest planets this year. On Saturday evening, August 27, Venus and Jupiter will approach within a hair’s breadth of each other as viewed with the naked eye —...
they look at statistical data. From that data,they seethat these people express anxiety about race and immigration, and that they are not disproportionately poor. Theythus concludethat Trump voters are motivated primarily by prejudice, and mock the idea that it is economic concerns that matter mos...
Con:What made you want to go to Selma? Ann:That is easy. My children’s dentist called me up one night. He was a man who had a lot of friends including Elizabeth Kubler-Ross and had us for dinner parties. He called me up and said “What are we going to do, what are we going...
"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
A. Both are made of ice and dust. B. Both can be seen clearly with the naked eye. C. Both move very fast in the sky. D. Both are very rare phenomena. 相关知识点: 试题来源: 解析 C。本题考查流星和彗星的相似之处。选项 C 正确,流星和彗星在天空中移动速度都很快。选项 A 错误,彗星...
So, the answer to my question of where IPAs came from, is from the competition of British breweries for overseas markets and the very enterprising George Hodgson who at least popularized it, if not named it. Less of a simple story, but the truth. ...