Halos, Bubbles and Old Explosions日冕、气泡和远古爆炸A newly discovered hot halo, a cosmic fountain and ghostly bubbles produced by an ancient explosion could c...
How High the Moon月亮有多高Tom Murphy wants to know how far it is to the moon. Not just how many miles, or how many feet, or even how many inches.Tom Murph...
Lost lakes.Two new lakes found under an Antarctic ice sheet rival Lake Vostok (pictured) in size.Credit: M. Studinger Frozen Land O' LakesBy Mas...
Alaska's North Slope Sees Its Biggest Oil Spill Alaska officials said Friday that up to 267,000 gallons of crude oil poured out of a pipeline at t...
Deep trouble. Methane bubbles from a tar-covered oil seep in the Santa Barbara Channel.背景资料以往我们一听到温室效应，第一直觉都会联想到二氧化碳。但是越来越多的研究指出，甲烷对温室效应的影响，是超乎我们之前所想像...
Mount EtnaSicily's greatest natural attraction is also its highest mountain. To the ancient Greeks, Mount Etna was the realm of Vulcan, god of fir...
Amber: Window to the Past 琥珀:通向过去的窗口Amber is a form of tree resin(琥珀是由树脂形成的) -- exuded as a protective mechanism against disease and insect infestatio...
Sandstorms and the dust and gases from volcanoes pollute the earth's atmosphere naturally. But the most serious kind of air pollution comes from p...
The Wonderful Structure of a Microcomputer In Chinese, a computer is popularly known as an " electrical brain", for the working process of a...
The computer virus is an outcome of the computer overgrowth in the 1980s．The cause of the term "computer virus" is the likeness between the ...