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十三的梦
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创建于 2015-03-13

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hoowards

1个月前 收录

这里的东西不屈强权,只追求于真理,那是人类最本质的善与恶。我希望这个网址上发表每一样东西都经得起历史的考验。 查看详情>>

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军事博物馆

1个月前 收录

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军事游

1个月前 收录

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张德江:今年前2个月中俄贸易额增长近30%是良好开端

1个月前 收录

中国全国人大常委会委员长张德江表示,中方认为,2017年前2个月中俄两国贸易额增长近30%是个良好的开端。张德江与俄罗斯联邦委员会主席马特维延科举行会谈时称,2016年中俄双边贸易额达到695亿美元,比2015年增长2.2%。今年前两个月中俄进出口贸易额115.8亿美元,同比增长28.8%,标 查看详情>>

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外媒:五角大楼5月将进行拦截朝鲜导弹试验

1个月前 收录

据CNN援引美国防部官员的话称,五角大楼将于2017年5月在太平洋水域进行2次拦截朝鲜或伊朗导弹的试验。据悉,试验将包括从军舰发射带有改良战斗性能的反导系统导弹。设计这些导弹计划的目的是拦截朝鲜的中程导弹。据CNN消息称,5月末在太平洋上的第二次试验将集中于美国击落平壤研制 查看详情>>

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Hubble Views a Galaxy on Edge

1个月前 收录

Hubble Views a Galaxy on Edge
This NASA/ESA Hubble Space Telescope image shows an edge-on view of the spiral galaxy NGC 5023. Due to its orientation we cannot appreciate its spiral arms, but we can admire the elegant profile of its disk. The galaxy lies over 30 million light-years away fro 查看详情>>

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Shadow of a Martian Robot

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Shadow of a Martian Robot
What if you saw your shadow on Mars and it wasn't human? Then you might be the Opportunity rover currently exploring Mars. Opportunity 查看详情>>

阅读:1114

Aurora in the Backyard

1个月前 收录

Aurora in the Backyard
On the night of March 17/18 this umbrella of northern lights unfolded over backyards in Vallentuna, Sweden about 30 kilometers north of Stoc 查看详情>>

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Earth During a Total Eclipse of the Sun

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Earth During a Total Eclipse of the Sun
What does the Earth look like during a total solar eclipse? It appears dark in the region where people see the eclipse, because that's 查看详情>>

阅读:1735

The Big Dipper Enhanced

1个月前 收录

The Big Dipper Enhanced
Do you see it? This common question frequently precedes the rediscovery of one of the most commonly recognized configurations of stars on th 查看详情>>

阅读:1313

Astronomy Picture of the Day

1个月前 收录

Astronomy Picture of the Day
Cradled in cosmic dust and glowing hydrogen, stellar nurseries in Orion the Hunter lie at the edge of giant molecular clouds some 1,500 light-years away. Spanning about 30 degrees, this breath-taking vista stretches across the well-known constellation from hea 查看详情>>

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Ebola-Ravaged Countries

1个月前 收录

Ebola-Ravaged Countries
West Africa's suffering is unlikely to be over, even as Ebola winds down after killing over 10,000 people there. A new study out Thursday warns that the region is extremely vulnerable to a measles epidemic that could be equally deadly.Measles is one of th 查看详情>>

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New Pristine Seas

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Photographer Captures Tens of Thousands Fleeing ISIS

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The Great Wall by Moonlight

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The Great Wall by Moonlight
Last Friday, an almost Full Moon rose as the Sun set, over this mountainous landscape north of Beijing, China. Also near apogee, the farthes 查看详情>>

阅读:1138

Yellow Balls in W33

1个月前 收录

Yellow Balls in W33
Infrared wavelengths of 3.6, 8.0, and 24.0 microns observed by the Spitzer Space Telescope are mapped into visible colors red, green, and bl 查看详情>>

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NGC 4676: When Mice Collide

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NGC 4676: When Mice Collide
These two mighty galaxies are pulling each other apart. Known as the "Mice" because they have such long tails, each spiral galaxy 查看详情>>

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Stars, Sprites, Clouds, Auroras

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Stars, Sprites, Clouds, Auroras
What are those red streaks in the sky? While photographing unexpected auroras over a distant thunderstorm, something extraordinary happened: 查看详情>>

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2015 March 8

1个月前 收录

2015 March 8
The center of our Milky Way Galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas. But in this stu 查看详情>>

阅读:1418

2015 March 12

1个月前 收录

2015 March 12
The W-shaped ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinct 查看详情>>

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Life Cycle of Stars

1个月前 收录

Life Cycle of Stars
In this stunning picture of the giant galactic nebula NGC 3603, the crisp resolution of NASA's Hubble Space Telescope captures various 查看详情>>

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A Grazing Encounter Between Two Spiral Galaxies

1个月前 收录

A Grazing Encounter Between Two Spiral Galaxies
The larger and more massive galaxy is cataloged as NGC 2207 (on the left in the Hubble Heritage image), and the smaller one on the right is 查看详情>>

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Fire In The Sky

1个月前 收录

Fire In The Sky
Description Astronauts on the International Space Station (ISS) used a digital camera to capture several hundred photographs of the aurora a 查看详情>>

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Hubble's Sharpest View of the Orion Nebula

1个月前 收录

Hubble's Sharpest View of the Orion Nebula
This dramatic image offers a peek inside a cavern of roiling dust and gas where thousands of stars are forming. The image, taken by the Adva 查看详情>>

阅读:1745

Magnificant Details in a Dusty Spiral Galaxy

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Magnificant Details in a Dusty Spiral Galaxy
In 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie Insti 查看详情>>

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Supernova SN1987A in the Large Magellanic Cloud

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Supernova SN1987A in the Large Magellanic Cloud
Glittering stars and wisps of gas create a breathtaking backdrop for the self-destruction of a massive star, called supernova 1987A, in the Large Magellanic Cloud, a nearby galaxy. Astronomers in the Southern hemisphere witnessed the brilliant explosion of thi 查看详情>>

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Butterfly Nebula

1个月前 收录

Butterfly Nebula
The Hubble Space Telescope's Wide Field and Planetary Camera 2 (WFPC2) is back at work, capturing this image of the "butterfly win 查看详情>>

阅读:1025

Hubble Images a Swarm of Ancient Stars

1个月前 收录

Hubble Images a Swarm of Ancient Stars
This stellar swarm is M80 (NGC 6093), one of the densest of the 147 known globular star clusters in the Milky Way galaxy. Located about 28,0 查看详情>>

阅读:964

Fireworks of Star Formation Light Up a Galaxy

1个月前 收录

Fireworks of Star Formation Light Up a Galaxy
Located some 13 million light-years from Earth, NGC 4214 is currently forming clusters of new stars from its interstellar gas and dust. In t 查看详情>>

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Aaron Cohen

1个月前 收录

Aaron Cohen
Aaron Cohen served as NASA Acting Deputy Administrator from February 19, 1992 to November 1, 1992. Mr. Cohen started at NASA's Johnson 查看详情>>

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STS-83 Rollout

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STS-83 Rollout
The rising sun and some scattered clouds provide a picturesque backdrop for the Space Shuttle Discovery as it travels along the Crawlerway toward Launch Pad 39A in preparation for the STS-83 mission. The Shuttle is on a Mobile Launch Platform, and the entire a 查看详情>>

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Butterfly Nebula

1个月前 收录

The Hubble Space Telescope's Wide Field and Planetary Camera 2 (WFPC2) is back at work, capturing this image of the "butterfly wing"- shaped nebula, NGC 2346. The nebula is about 2,000 light-years away from Earth in the direction of the constellation Monoceros. It represents the spectacular "last gasp" of a binary star system at the nebula's center. The image was taken on March 6, 1997 as part of 查看详情>>

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Expedition 42 Soyuz Landing

1个月前 收录

Expedition 42 Soyuz Landing
The Soyuz TMA-14M spacecraft is seen as it lands with Expedition 42 commander Barry Wilmore of NASA, Alexander Samokutyaev of the Russian Fe 查看详情>>

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