15-10-21 UCLA geochemists have found evidence that life likely existed on Earth at least 4.1 billion years ago -- 300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.5...
15-10-12 There have been many estimates for when the earth's inner core was formed, but scientists from the University of Liverpool have used new data which indicates that the Earth's inner core was formed 1 - 1.5 billion years ago as it froze from the surro...
15-08-13 NASA said that its Kepler spacecraft has spotted Earth's bigger, older cousin: the first nearly Earth-size planet to be found in the habitable zone of a star similar to our own. 美国太空总署(NASA)宣布,开普勒太空望远镜发现了地球的大表哥,这也是首...
15-08-04 Since 2010, the best estimate of the age of Earth's magnetic field has been 3.45 billion years. But now a researcher responsible for that finding has new data showing the magnetic field is far older. John Tarduno, a geophysicist at the University of...
15-07-22 McGuire's Twenty-Five Minutes Benjamin S. Grossberg ... as he was executed with a combination of drugs never before tried in the U.S. A portable dark. Maybe a cave inside a syringe, that mind wanders. A dark of deep, deep in the earth, or well wide...
15-06-09 History Robert Morgan Where cloudbursts tore a gash in the shoulder of the ridge, uprooting ferns and hedge, a maple and an ash, a honeysuckle vine and wires of gold ground pine, the slide exposed a vein of mica, groundhog den, a zone of luminous cl...
15-05-22 A cartwheeling spider, a bird-like dinosaur and a fish that wriggles around on the sea floor to create a circular nesting site are among the species identified by the SUNY College of Environmental Science and Forestry (ESF) as the Top 10 New Species...
15-04-09 Within the first 150 million years after our solar system formed, a giant body roughly the size of Mars struck and merged with Earth, blasting a huge cloud of rock and debris into space. This cloud would eventually coalesce and form the moon. For al...
15-03-18 The shore is an ancient world, for as long as there has been an earth and se a there has been this place of the meeting of land and water. Yet it is a world that keeps alive the sense of continuing creation and of the relentless drive of life. Each...
15-03-03 Recreating the violent conditions of Earth's formation, scientists are learning more about how iron vaporizes and how this iron rain affected the formation of Earth and Moon. The study is published March 2 in Nature Geoscience. We care about when ir...