Life may have started on Mars before arriving on Earth, a major scientific conference has heard.某学术讨论会上传出消息，生命体到达地球之前已经在火星上出现。New research supports an...
Scientists expect the future climate to become warmer, and that this will apply to the Arctic in particular. Here the temperature is expected to incre...
In the latest advance in efforts to find an inexpensive way to make hydrogen from ordinary water -- one of the keys to the much-discussed "hydrog...
Previously unknown archeological sites in forest islands reveal human presence in the western Amazon as early as 10,000 years ago, according to resear...
When a beating heart slips into an irregular, life-threatening rhythm, the treatment is well known: deliver a burst of electric current from a pacemak...
For the first time, astronomers have seen the image of a distant quasar（类星体） split into multiple images by the effects of a cloud of ionized gas in ou...
How tiny fish larvae travel away from the reef, then know how to navigate their way back home is a scientific mystery. A new study led by Dr. Claire P...
An analysis of gravity and topography（地势） data from Saturn's largest moon, Titan, has revealed unexpected features of the moon's outer ice she...
A new study by Anna Maria Niewiadomska and Robert Gifford, of The Aaron Diamond AIDS Research Center, New York, reveals that reticuloendotheliosis（网状内...
Like volunteers handing out cups of energy drinks to marathon runners, specially engineered "helper cells" transplanted along with stem cell...