Summary
The speaker talks about exploring the darkness, the solar system and the universe. She compares the act of universe understanding to a battle. She says the battle involves three essential elements: objects giving out light, telescope and instrument. For SDSS （sloan digital sky survey 斯隆数字航天）, objects are stars, galaxies and black holes. The telescopes are large ones installed in observatories in New Mexico and Chile. The instrument is the robotic focal plane. She mentions that stars are blowing, the black holes are expanding. She says SDSS made the survey data public, usable and accessible so that any citizens with curiosity can explore the universe, help win the battle of understanding it. She ended her speech by saying "don't fear dark. Fight back."
Some facts she mentioned during speech:
1.At the point when materials enter the black holes and lose all the information, it emits all kinds of x rays, optical UV light and radio waves.电波
2. SDSS has looked at half a million black holes.
3. Milky ways have a disturbing past: they blew themselves up.
演讲的话题是探索黑暗、太阳系和宇宙。她提到对于宇宙的探索有数千年的时间，人类一直在坚持不懈地试图理解和解读天空、星星、月亮等。宇宙是无边无际的，但是可探测范围内的宇宙是有边界的，在边界内探索和研究需要三个基础要素：发光的天体、捕捉光的望远镜和分析光的设备。对于斯隆数字巡天来说，他们研究星星、星系和黑洞。望远镜在新墨西哥州和智利。斯隆数字航天项目还会把探测数据做成公开版，给客户看。
她演讲中提到几点知识：
1.当物质进入黑洞，要失去所有信息的瞬间，会发射很多光线、紫外线和无线电波。
2.斯隆数字巡天已经探测了500万个黑洞。（所以说黑洞不止一个，我本来以为黑洞只有一个。）
3.银河会炸掉自己。
Vocabulary
1.Moon phase 月相
2.calling card 在场证据
N-COUNT If you say that someone has left a calling card, you mean that they have left evidence that shows they have been in a particular place, especially at the scene of a crime. 在场证据
• John was studying the medallion/məˈdæliən/ in the evidence bag – the killer's calling card.
约翰正在研究证据袋里的徽章–凶手留在犯罪现场的证物。
3.Cut right to the chase 切入正题
4.Orion猎户座
5. neolithic 新石器时代的
6.clamshell 蛤壳
7.dipper 北斗星
8.Nebra Sky Disk 内布拉星象盘内夫拉星象盘
ˌ9.Seven ˈSisters 北斗星团
unrelenting 不屈不挠的/不松懈的
telescope 望远镜
bestie 最好的朋友
sloan digital sky survey 斯隆数字航天
jelly beans 软心糖
incarnate 化身的; 极典型的
ADJ
If you say that someone is a quality incarnate, you mean that they represent that quality or are typical of it in an extreme form. 化身的; 极典型的
• She is evil incarnate.
她是邪恶的化身。
radio waves 无线电波
Tycho /ˈtaɪkəʊ/
N a relatively young crater in the SW quadrant of the moon, 4 km deep and 84 km in diameter, with a central peak. It is the centre of a conspicuous system of rays 第谷; 月球西南部的相对年轻的环形山
Kepler /ˈkɛplə/
N a small crater in the NW quadrant of the moon, centre of a large bright ray system 开普勒环形山
Aperture 照相机或者望远镜的光圈/孔径
Focal plane 焦平面
General relativity广义相对论
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