Study looks at San Francisco quake vulnerability

As two of San Francisco's most vaunted buildings sink or crack, an earthquake study recommended re-inspecting dozens of high-rises and beefing up construction codes for the growing crop of skyscrapers in the booming city.

NASA Voyager 2 could be nearing interstellar space

NASA's Voyager 2 probe, currently on a journey toward interstellar space, has detected an increase in cosmic rays that originate outside our solar system. Launched in 1977, Voyager 2 is a little less than 11 billion miles ...

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