Our galactic neighborhood has no obvious street signs, and crafting a map pointing to one planet among the billions (and billions) of worlds populating the Milky Way is no simple feat. 我们的银河系中并没有明显的标识,要想绘制一张地...
Carl asked Dad for help crafting the message while the two of them were in San Juan, Puerto Rico, for a meeting of the American Astronomical Society. Dad recalls that, in the lobby of the San Gernimo Hilton, he and Carl quickly came up with ideas abo...
It was December 1971, and NASA was getting ready to launch Pioneer 10, a spacecraft that would sweep by Jupiter and make the first reconnaissance of the solar system's biggest planet. More stunningly, though, Pioneer 10's brush by Jupiter would sling...
A half century ago astronomers designed a map that would point to Earth from anywhere in the galaxy. Then they sent it into space, reasoning that any aliens smart enough to intercept a spacecraft could decode the map and uncover its origin. Many movi...
Winter is integral to the culture of the Great Lakes region. Warm mid-February days draw Michiganders outside, but they're uneasy. 冬天是五大湖地区文化不可或缺的一部分。温暖的二月中旬,可以吸引密歇根人来到户外,但...
So, although one year may be warmer than the one before, some recent winters were icy cold. In 2013-14, the polar vortex carried frigid air from the Arctic into the continental U.S., and the cold stretched well south of the Great Lakes. Total ice cov...
Leavitt isn't alone. Ice provides crucial things to everyone who goes out on it. Respite for some, dearly held recreation for others, food, and much more. Snow and ice also are critical components of local U.S. economies across the region: Winter ski...
For Leavitt, 38, the ice has always been a place to bring her life into focus. 对38岁的拉维特来说,冰面一直是她关注的东西。 When her family would drive from downstate Michigan to visit her grandparents, who owned the lakeside cam...
In Japan, priests at a Shinto temple have kept an almost 600-year record of when their lake freezes all the way across. Natural climate cycles emerge from that record -- dwarfed in recent decades by the human-caused warming that has gripped the plane...
The Great Lakes account for about 20 percent of the freshwater on Earth's surface. The lakes' geographical footprint is also hard to fathom. Their combined surfaces span more than 94,000 square miles, about the size of the United Kingdom. The combine...