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If conditions had been just a little different an eon ago, there might be plentiful life on Venus and none on Earth.The idea isn’t so far-fetched, according to a hypothesis by Rice University scientis...
“黎明”号揭示谷神星亮斑及次表层成分
黎明号 谷神星亮斑 次表层成分
2016/6/30
英国《自然》杂志及《自然—地球科学》杂志2016年6月29日公开发表的两篇行星科学论文，对美国国家航空航天局（NASA）“黎明”号探测器经过谷神星时收集的数据进行了全新分析，揭示了这颗矮行星的神秘亮斑及其表面以下的组成成分。论文指出，虽然时间可能很短暂，但谷神星的次表层中或存在一些液体。
2016年6月23日在线发表于《自然》的一项研究成果称，一个通常处于休眠状态的超质量黑洞（SMBH）撕碎了一颗临近的恒星。这项研究分析了收集到的X光数据，这些数据来源于这颗恒星经历的“潮汐瓦解事件”和被吸入超质量黑洞的过程。该成果为研究通常处于沉睡状态的黑洞的引力效应开辟了新途径，并可能应用于测量黑洞的自旋。
Scientists ditch approximations,begin modeling universe with Einstein’s full theory of General Relativity
Scientists ditch approximations modeling universe Einstein’s full theory General Relativity
2016/7/4
Research teams on both sides of the Atlantic have shown that precise modeling of the universe and its contents will change the detailed understanding of the evolution of the universe and the growth of...
Dormant Black Hole Eats Star,Becomes X-Ray Beacon
Dormant Black Hole Eats Star X-Ray Beacon
2016/7/4
Roughly 90 percent of the biggest black holes in the known universe are dormant, meaning that they are not actively devouring matter and, consequently, not giving off any light or other radiation. But...
科学家认为古火星或曾富含氧气
科学家 古火星 富含氧气
2016/5/5
火星表面的岩石存在该行星大气层曾富含氧气的最好线索。火星表面因为富含氧化铁（或铁锈）而有了“红色行星”的绰号。但是除此之外，美国宇航局（NASA）的“好奇”号漫游者发现，火星盖尔陨坑中的岩石内含有大量氧化锰。“我们发现有3%的岩石含有高氧化锰成分。”法国天体物理学和行星研究所的Agnès Cousin近日在奥地利维也纳举行的地球物理联合会上作报告时说。“这将需要大量的水以及非常强的氧化条件，因此火...
类轴子粒子或非暗物质备选粒子（图）
类轴子粒子 非暗物质 备选粒子
2016/4/27
据瑞典斯德哥尔摩大学官网消息，该校科学家对美国国家航空航天局（NASA）的费米太空望远镜提供的大量观测记录进行分析后发现，一种假设的暗物质粒子——“类轴子粒子”或许并非暗物质的备选粒子；或许这种粒子根本就不存在。最新研究朝着揭开暗物质的秘密更近了一步。研究发表在最新一期的《物理评论快报》杂志上。
Europa’s heaving ice might make more heat than scientists thought
Europa ice heat scientists
2016/4/25
Jupiter’s moon Europa is under a constant gravitational assault. As it orbits, Europa’s icy surface heaves and falls with the pull of Jupiter’s gravity, creating enough heat, scientists think, to supp...
Every second, trillions of neutrinos travel through your body unnoticed. Neutrinos are among the most abundant particles in the universe, but they are difficult to study because they very rarely inter...
Lonely Black Hole Relic Shines Light on Young Universe
Lonely Black Hole Relic Light Young Universe
2016/4/13
Astronomers using the 8-meter Gemini North telescope on Hawaii’s Maunakea have probed an enigmatic, and unexpected, supermassive black hole dominating the core of a large galaxy in the cosmic backwate...
WVU astrophysicists part of gravitational wave search that provides insights into galaxy evolution and mergers
WVU astrophysicists gravitational wave search galaxy evolution and mergers
2016/4/13
On the heels of their participation in the historic research that resulted in the detection of gravitational waves, West Virginia University astrophysicists continue to plow new ground ...
Seventh-graders learn astrophysics through mixed-reality computer simulation
Seventh-graders astrophysics mixed-reality computer simulation
2016/4/13
Had the “learn’d astronomer’s” charts and theorems inspired the 19th-century writer Walt Whitman as much as strolling under the nighttime sky, Whitman might have become an astrophysicist instead of a ...
NASA selects Penn State to lead next-generation planet finder
NASA Penn State lead next-generation planet finder
2016/4/13
A Penn State-led research group has been selected by NASA's Astrophysics Division to build a $10-million, cutting-edge instrument to detect planets orbiting stars outside our solar system. The team, l...
York University astrophysicists detect ultra-fast winds near supermassive black hole
York University astrophysicists ultra-fast winds supermassive black hole
2016/3/28
New research led by astrophysicists at York University has revealed the fastest winds ever seen at ultraviolet wavelengths near a supermassive black hole.“We’re talking wind speeds of 20 per cent the ...
New clues in the hunt for the sources of cosmic neutrinos（图）
New clues the hunt cosmic neutrinos
2016/3/2
The sources of the high-energy cosmic neutrinos that are detected by the IceCube Neutrino Observatory buried in the Antarctic ice may be hidden from observations of high-energy gamma rays, new researc...