14-06-11 Work presented today at the Goldschmidt Geochemistry Conference in Sacramento, California shows that the timing of the giant impact between Earth's ancestor and a planet-sized body occurred around 40 million years after the start of solar system for...

14-06-10 A new series of measurements of oxygen isotopes provides increasing evidence that the Moon formed from the collision of Earth with another large, planet-sized astronomical body, around 4.5 billion years ago. This work will be published in Science on...

14-05-22 Some twenty days' sail from the coast of Persia lies the isle of the children of Khaledan. The island is divided into several provinces, in each of which are large flourishing towns, and the whole forms an important kingdom. It was governed in forme...

14-05-16 Scientists have discovered new evidence to suggest that lightning on Earth is triggered not only by cosmic rays from space, but also by energetic particles from the Sun. University of Reading researchers found a link between increased thunderstorm a...

14-05-04 In the movies, humans often fear invaders from Mars. These days, scientists are more concerned about invaders to Mars, in the form of micro-organisms from Earth. Three recent scientific papers examined the risks of interplanetary exchange of organis...

14-05-04 To see the golden sun and the azure（蔚蓝的） sky, the outstretched（扩张的） ocean, to walk upon the green earth, and to be lord of a thousand creatures, to look down giddy（头晕的） precipices（悬崖） or over distant flowery vales, to see the worl...

14-04-19 Ancient Earth might have had an extraterrestrial supply of vitamin B3 delivered by carbon-rich meteorites, according to a new analysis by NASA-funded researchers. The result supports a theory that the origin of life may have been assisted by a suppl...

14-04-09 Meanwhile the Indian had turned the horse in such a direction that, before many hours had passed, it had entered a wood close to the capital of the kingdom of Cashmere. Feeling very hungry, and supposing that the princess also might be in want of fo...

14-04-09 Meanwhile, Prince Firouz Schah had gone gaily up into the air, and for the space of an hour continued to ascend higher and higher, till the very mountains were not distinguishable from the plains. Then he began to think it was time to come down, and...

14-04-06 An international team of planetary scientists determined that the Moon formed nearly 100 million years after the start of the solar system, according to a paper to be published April 3 in Nature. This conclusion is based on measurements from the int...