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18 March 2010
This is Getting Boring: General Relativity Passes Yet another Big Test!
Published in 1915, Einstein's theory of general relativity (GR) passed its first big test just a few years later, when the predicted gravitational deflection of light passing near the Sun was observed during the 1919 solar eclipse. In 1960, GR passed its first big test in a lab, here on Earth; the Pound-Rebka experiment. And over [...]
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20 February 2010
ESA's Tough Choice: Dark Matter, Sun Close Flyby, Exoplanets (Pick Two)
Key questions relevant to fundamental physics and cosmology, namely the nature of the mysterious dark energy and dark matter (Euclid); the frequency of exoplanets around other stars, including Earth-analogs (PLATO); take the closest look at our Sun yet possible, approaching to just 62 solar radii (Solar Orbiter) … but only two! What would be your [...]
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08 February 2010
Universe to WMAP: ΛCDM Rules, OK?
The Wilkinson Microwave Anisotropy Probe (WMAP) science team has finished analyzing seven full years' of data from the little probe that could, and once again it seems we can sum up the universe in six parameters and a model. Using the seven-year WMAP data, together with recent results on the large-scale distribution of galaxies, and an [...]
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