earth
2020-7-11 0:24
上次二氧化碳处于类似水平时，气温升高了3摄氏度至4摄氏度，海平面上升了20米。
据一项研究的作者称，地球大气中的二氧化碳含量正在接近1500万年来未曾见过的水平，也可能是类人猿以前从未经历过的。
按照封锁前的上升速度，五年内大气中的二氧化碳将超过百万分之427，这可能是330万年前上新世中期变暖时期的峰值，当时气温高......
2020-6-27 16:23
英格兰、苏格兰和波兰的科学家说，DNA和RNA是支撑所有地球生物的两种主要现代遗传密码形式，在这里出现生命之前，它们可能在我们的星球上以严格的配对共存。研究人员利用一种基于氰化氢的化学系统来模拟地球早期历史的条件，制造了四个碱基，即遗传字母表的分子“字母”。这些碱基串在一起，形成基因序列，细胞可以将其翻译成蛋白质。但......
2020-6-15 23:46
太阳穿过地球的图像，在“中微子光”下，在超级神冈探测器(日本)拍摄。这张图像是在503天的曝光时间内获得的，通过记录从太阳核心发射的中微子，并在位于地下1公里处的5万吨重的水池中探测到的中微子。在夜间，中微子透明地穿越整个地球，然后才被记录在这张图像中。
中微子是一种质量几乎为零的基本质粒子，只有通过微弱的核力和引力......
2020-6-1 12:25
包括日内瓦大学(UNIGE)研究人员在内的一个国际科学家小组已经证实，半人马座阿尔法星系中最近的恒星比邻星周围存在一颗地球大小的行星。你可以在“天文学与天体物理学”杂志上读到这些结果，结果显示，这颗行星Proxima b的质量为1.17地球质量，位于其恒星的宜居带上，它的公转周期为11.2天。这一结果可以在“天文学与......
2020-5-25 21:25
你需要从阿拉斯加的费尔班克斯获得500吨物资到北冰洋-这是一次大约400英里的穿越纯净荒野的旅程。这里没有道路，几乎没有简易机场，海洋是一层坚实的冰层。你得忍受零下68度的温度。另外，如果你不快点的话，核末日也在菜单上。
到1954年，随着冷战的顺利进行，美国政府意识到将一架核轰炸机从俄罗斯运往美国的最快方式是直接飞......
2020-5-24 6:18
绘制地球地图是一个经典的问题。几千年来，制图学家、数学家和发明家都想出了将地球曲面映射到平面上的方法。主要的问题是，您不能完美地做到这一点，这样表面的形状和大小就可以正确地描绘在每个地方。这让我很长一段时间都很感兴趣。为什么不拿一张近乎完美的地球上一小部分的地图，把相邻的地图粘在上面，然后重复这个过程，直到整个地球都......
2020-5-4 0:25
正如火山喷发和地震偶尔提醒我们的那样，我们脚下的地球一直在移动。
大陆板块每年只移动大约1-4英寸，所以我们没有注意到持续重塑地球表面的构造力。但在足够长的时间线上，这些英寸加起来会给地球上陆地的配置方式带来很大的变化。
今天的地图是由Massimo Pietrobon绘制的，它回顾了地球上所有的陆地都被安排成一个名......
2011-9-19 15:56
James Drake used time-lapse photography technology to shoot 600 photos in total, and finally combined them into such a cool video.
Come on, take a look, this ......
2011-7-15 10:40
The data may not be very accurate, but we can roughly understand the general situation. Are you shocked?
2011-5-16 18:8
How insignificant a person is in the universe! Why should we be so arrogant when achieving a little success?
2011-3-30 10:59
Earth Hour is a proposal put forward by the World Wildlife Fund (WWF) to deal with global climate change, and it hopes that individuals, communities, businesse......
2010-12-24 22:3
According to a recent report by the UK's Daily Telegraph, a small village in France has recently been rumored to be the only surviving place when the "end of t......
2010-10-25 9:52
The satellite map of Tian 'anmen Square in Beijing is not the same as the picture on Google Map at present, but it is completely consistent with the satellite ......
2010-8-20 10:8
A probe specially designed to study the boundaries of the solar system turned around and looked back at the shocking sight of the solar wind hitting Earth's ma......
2010-8-11 22:18
There is no doubt that the use of drones in future wars, espionage and other covert military activities will increase. But what about the controversy over a pr......
2010-6-18 14:16
The best part is that if you choose to browse in ultra-high resolution, you can step inside the museum and taste the details of the masterpieces. According to ......
2010-4-6 13:2
"Earth Hour" is a global public welfare activity advocated by WFF to the world. The program calls on individuals, communities, businesses and governments to vo......
2010-3-5 11:11
NASA and the European Space Agency have released spectacular satellite images of the Earth in February, including the ski slopes of the Vancouver Winter Olympi......
2010-2-25 19:26
Shooting the mountain is not a quick and easy thing, not only to climb the mountain, but also to walk around the mountain, looking for the best shooting Angle.......
2010-2-24 10:28
New images from Google Earth show the US Air Force's famous "aircraft graveyard" in the Arizona desert, where several generations of military aircraft are kept......
2009-10-29 10:8
This is a list of the top 10 most eye-pleasing deserts on Earth, but if you are stuck in a desert dilemma, any of the deserts on this list may not be to your t......
2009-10-19 10:54
What would it look like if an object with vision was on Mars and saw the overlap of Earth and Jupiter? This is a picture taken by a NASA spacecraft on May 8, 2......
2009-10-1 10:58
This series of images of the Earth taken from the satellite, the color is beautiful like painting.
2009-9-23 12:48
In the long period of time, glaciers and natural climate have experienced cycles of decline and rise. Today, the world's glaciers are melting, a process accele......
2009-8-2 17:4
http://www.mov99.cn 2009-08-02 12:43:00 Source: NetEase
In late July, Jupiter was hit by another object, leaving a black scar near the South Pole and an Earth-......
2009-7-12 10:17
Google sent out invitations to the media on Thursday, saying that the company will hold a media event in Washington, D.C., on the 20th of this month to announc......
2009-6-4 23:51
Human beings have never given up the exploration of the unknown world in the universe, and have never given up the search for unknown creatures and unknown "hu......