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在宏观研究前沿,我们所有的终极问题,可以总结为“一黑两暗三起源”。 “一黑”就是黑洞;“两暗”就是暗物质和暗能量;“三起源”就是指宇宙的起源、生命的起源和意识的起源。小行星作为太阳系形成和演化的“化石”,是揭示太阳系起源的重要窗口。在百万计的小行星中,有一类C型小行星(parent bodies of carbonaceous chondrites),它们富含碳、水等挥发分,以及丰富的氨基酸等有机...
火星的沉积岩记录保存了数十亿年前发生在这个星球上的地质学和潜在的天体生物学过程的信息。盖尔陨石坑形成于36亿年前,曾经是一个湖泊。轨道和好奇号探测显示,盖尔陨石坑的沉积岩垂直厚度可达几百米,这些沉积岩中含有大量粘土矿物——蒙脱石。蒙脱石族矿物是一类表面积大、负静电电荷高的粘土矿物,可吸附有机质,因此蒙脱石的存在有利于有机质在地质记录中保存。以前人们一般倾向于认为,陨石坑底部的蒙脱石形成后基本上没有...
The science and technology are remarked by its continuous evolution, renovation and improvement, which contribute for the progress. They depend on talented and dedicated professionals, able to make ...
We describe the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) Early Re- lease Science (ERS) observations in the Great Observatories Origins Deep Survey (GOODS) South eld. The new WFC3 ERS d...
We present results on the size evolution of passively evolving galaxies at 1 . z . 2 drawn from the Wide Field Camera 3 Early Release Science program. Our sample was constructed using an analog to the...
The Advanced Technology Large-Aperture Space Telescope (ATLAST) is a concept for an 8-meter to 16-meter UVOIR space observatory for launch in the 2025-2030 era. ATLAST will allow astronomers to answer...
By providing sensitive sub-arcsecond images and integral field spectroscopy in the 25 – 400 ìm wavelength range, a far-IR interferometer will revolutionize our understanding of planetary system format...
We combine new high sensitivity ultraviolet (UV) imaging from the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) with existing deep HST/Advanced Camera for Surveys optical images from ...
There are already hundreds of terabytes of astronomical data in the public domain, and soon the astronomical community will generate tens of petabytes of new data. There is an enormous science pot...
The Stratospheric Observatory for Infrared Astronomy (SOFIA) completed its first light flight in May of 2010 using the facility mid-infrared instrument FORCAST. Since then, FORCAST has successfully co...
We present new mid-infrared images of the central region of the Orion Nebula using the newly commissioned SOFIA airborne telescope and its 5 -- 40 micron camera FORCAST. The 37.1 micron images represe...
Abstract: What can physics students learn about science from those scientists who got the answers wrong? Students encounter little science history, and what they have encountered typically portrays sc...
"High-resolution", or "long-baseline", science with the SKA and its precursors covers a broad range of topics in astrophysics. In several research areas, the coupling between improved brightness sensi...
"High-resolution", or "long-baseline", science with the SKA and its precursors covers a broad range of topics in astrophysics. In several research areas, the coupling between improved brightness sensi...
We study the Spectral Energy Distribution (SED) and the power spectrum of Galactic cirrus emission observed in the 14 deg2 Science Demonstration Phase field of the Herschel-ATLAS using Herschel and ...

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