NASA Satellite Image Shows Beijing Drowning in a Lake of Smog
How bad is it? The U.S. considers air with miniscule particles above 100 micrograms per cubic meter as “unsafe.” This weekend, the U.S. Embassy in Beijing logged concentrations almost as high as 900 micrograms. As many as 33 cities had “hazardous” air during the weekend, according to Chinese media, leading to crushes of people seeking medical help for breathing problems and a booming market for face masks.
Chinese officials’ response to the air-pollution crisis has been quick and decisive. Stay indoors! they say. Dozens of construction sites have shut down to help diminish the foul cloud. So far, the situation has not approached the direness of the weather-related smogmageddon of October 2010. An ocean of cottony air reduced visibility to as little as 330 feet in places, leading to a rash of traffic accidents that wound up killing at least 32 people.
Read more. [Images: Jason Lee, Reuters]
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It contains around 5,500 galaxies, some of which are one ten-billionth the brightness visible to the human eye. There are spiral galaxies that resemble our own Milky Way, fuzzy red galaxies where stars are no longer being formed (at the time the light left them), and faint young galaxies, not yet fully grown. “The history of galaxies — from soon after the first galaxies were born to the great galaxies of today, like our Milky Way — is laid out in this one remarkable image,” NASA said in a press release. For the oldest galaxies in the image, the light now reaching us first shone some 13.2 billion years ago, more than 8.6 billion years before Earth even existed.
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