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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。
HAWC Gamma-Ray Observatory Reveals New Look at the Very-high-energy Sky
HAWC Gamma-Ray Observatory Very-high-energy Sky
2016/4/25
The United States and Mexico constructed the High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory to observe some of the most energetic phenomena in the known universe—the aftermath wh...
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 ...
天文学家发现迄今最远星系 在宇宙形成4亿年后开始发光（图）
GN-z11的星系 天体物理
2016/3/8
一个国际天文学家小组于3月3日报告说，他们借助哈勃空间望远镜，发现了一个距离地球约134亿光年的星系，从而彻底打破了刚刚于去年创造的最遥远星系纪录。换句话说，由于宇宙当前的年龄为138亿年，因此这个新发现的星系在前者不到其年龄的3%时便已经开始向外发光了。
已知宇宙的计算机模型显示出地球在宇宙中真的很孤独
地球 宇宙
2016/3/4
瑞典和美国科学家组成的一个国际研究团队，设计出一个已知宇宙的计算机模型，来评估系外行星的数量及其存在生命的可能。结果发现，目前众多系外行星中没有一颗与地球相似，地球或许比人们此前认为的更为独特。
“超级地球”大气中首次探测到氢和氦
超级地球 氢气 氦气
2016/2/22
英国伦敦大学学院（UCL）官网2月16日发布消息称，该校天文学家们首次对一颗“超级地球”的大气进行了直接探测，在其中发现了氢气和氦气存在的证据，但没有发现水的踪迹。这颗名为“55 Cancri e”的“超级地球”属于岩石行星，大小约为地球的2倍，质量为地球的8倍多，它离中央恒星很近，旋转一圈仅需18个小时，表面温度超过2000摄氏度。其母星55 Cancri名为“哥白尼”，距离地球40光年，是巨蟹...
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...
GGC physicist leads team in innovative black hole research
GGC physicist innovative black hole research
2016/2/23
Black holes are the subject of much fascination, not just in science but also in popular media. For example, the 2014 movie “Interstellar” portrays a fast-rotating, supermassive black hole, into which...
Galactic center's gamma rays unlikely to originate from dark matter,evidence shows
Galactic center gamma rays dark matter
2016/2/23
Bursts of gamma rays from the center of our galaxy are not likely to be signals of dark matter but rather other astrophysical phenomena such as fast-rotating stars called millisecond pulsars, accordin...