Mars Rover Spirit Develops Wheel Problem导读：美国宇航局(NASA)的科学家宣布，正在火星表面进行探测活动的勇气”号火星探测器目前出现了一些机械故障，右前轮的马达需要更大的电流才能工作。工程师们正在考虑是否将出现故障的轮子暂停使用，只在特别崎岖的地...
Private manned rocket plane makes history导读： 一架有人驾驶的美国火箭太空船21日清晨飞到了距离地表60英里左右(大约100公里)的高空，然后成功在没有动力的情况下安全滑翔返回地面，从而成功实现了首次私人赞助的太空探险活动。据悉，本次航行活动持续了90多分钟...
Unidentified Flying ObjectA UFO is the reported sighting of an object or light seen in the sky or on land, whose appearance, trajectory(轨迹), actions, ...
Overcoming the Problem of WasteMany large cities are anything but beautiful. Streets are littered with trash. In this trash, however, there is still s...
As a Business Gets Bigger, Its Radios Get SmallerThis satellite radio from SX(一个美国电台) displays stock quotes. Some receivers store songs to play later....
Genetically modified foods -- Feed the World?If you want to spark a heated debate at a dinner party, bring up the topic of genetically modified foods....
Internet turns 35, still a work in progress 因特网35岁了 仍在摸索中前进 Steve Crocker was a graduate student in 1969 at UCLA in the computer lab when the first ne...
Genesis space capsule crashes in Utah desert This NASA television image shows the Genesis return capsule on the ground as it landed in Dugway Proving ...
Flying cars swoop to the rescue Flying cars may be 25 years or more away。Next generation small aircraft may look like this Farnborough F1 concept。As ...
Mutant Gene "Sparked Art and Culture" A tiny mutation in a gene common to mammals may have changed the destiny of humanity. The gene, foxp2 ...