13-03-01 Mineral evolution is a new way to look at our planet's history. It's the study of the increasing diversity and characteristics of Earth's near-surface minerals, from the dozen that arrived on interstellar（星际的） dust particles when the Solar Syst...

12-12-04 Scattered around the Milky Way are stars that resemble（类似） our own sun -- but a new study is finding that any planets orbiting those stars may very well be hotter and more dynamic than Earth. That's because the interiors of any terrestrial plane...

12-12-03 An analysis of mineral grains from the bottom of the western Grand Canyon indicates it was largely carved out by about 70 million years ago -- a time when dinosaurs were around and may have even peeked over the rim, says a study led by the Universit...

12-11-28 Social and physical scientists have long been concerned about the effects of humans on Earth's surface -- in part through deforestation, encroachment（侵犯） of urban areas onto traditionally agricultural lands, and erosion of soils -- and the impli...

12-11-27 The question of how life began on a molecular level has been a longstanding problem in science. However, recent mathematical research sheds light on a possible mechanism by which life may have gotten a foothold（立足处） in the chemical soup that ex...

12-11-12 Astronomers have discovered a new super-Earth in the habitable zone, where liquid water and a stable atmosphere could reside, around the nearby star HD 40307. It is one of three new super-Earths found around the star that has three other low-mass pl...

12-11-08 If you have ever been discouraged because of failure, please read on. For often, achieving what you set out to do is not the important thing. Let me explain. Two brothers decided to dig a deep hole behind their house. As they were working, a couple...

12-11-06 The largest volcanic eruption on Earth in the past millions of years took place in Indonesia 74,000 years ago and researchers from the Niels Bohr Institute can now link the colossal（巨大的） eruption with the global climate and the effects on early...

12-10-26 When astronauts return to Earth, their altitude isn't the only thing that drops -- their blood pressure does too. This condition, known as orthostatic（直立的） hypotension, occurs in up to half of those astronauts on short-term missions (two weeks...

12-10-25 ESA's quartet of satellites studying Earth's magnetosphere（磁气圈） , Cluster, has discovered that our protective magnetic bubble lets the solar wind in under a wider range of conditions than previously believed. Earth's magnetic field is our plane...