There's a lot of snow falling, and in some places that is good news for travelers. Here's how to visit the snowiest places on ...
New satellite maps reveal that major U.S. cities are slowly sinking, exposing hidden risks to infrastructure and urban life.
A NASA research plane malfunctioned and had to touch down in Texas without landing gear on Tuesday, sliding across the runway ...
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Stargazing in the city: what you can (and can't) see at night
A range of gorgeous skywatching targets are visible to the naked eye in city skies.
Polluted air causes an estimated 7 million deaths worldwide each year, according to the World Health Organization. Much of ...
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