NASA vows to press on despite SpaceX rocket explosion
NASA vows to press on despite SpaceX rocket explosion The SpaceX Falcon 9 rocket that exploded Sunday means the loss of important research equipment and supplies for the crew on board the International Space Station.
Interesting example of gravitational lensing. The same supernova appears to be in four different places because the light from it is passing through space that's been warped by the strong gravitational field of an intervening galaxy. It's important to note that gravity is not affecting the supernova's photons directly--it can't, because they have no mass--it's actually bending the very space through which they are passing. Photo: NASA Hubble Space Telescope.
Study finds 'frictional heat' as a new trigger for explosive volcanic eruptions
Temperature may be more important than pressure in generating gas bubbles which trigger explosive volcanic eruptions, a new study into magma ascent has found. The study, which combined field observation, interpretation of monitored data and controlled laboratory experimentations, provides a strong argument for the integration of temperature as a key control in volcanic eruptions models.
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9 Hot Tips for Small Business Marketing on Facebook
This post originally appeared on the American Express OPEN Forum, where Mashable regularly contributes articles about leveraging social media and technology in small business. With 845 million users, Facebook has become an increasingly useful tool for brands, and it's important to have a stron...