"Unprecedentedly wide and sharp dark matter map" Topic
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| Tango01 | 09 Mar 2018 12:42 p.m. PST |
"In the 1930's, Edwin Hubble and his colleagues discovered the expansion of the Universe. This was a big surprise to most of the people who believed that the Universe stayed the same throughout eternity. A formula relating matter and the geometry of space-time was required in order to express the expansion of the Universe mathematically. Coincidentally, Einstein had already developed just such a formula. Modern cosmology is based on Einstein's theory for gravity. It had been thought that the expansion is decelerating over time because the contents of the Universe (matter) attract each other. But in the late 1990's, it was found that the expansion has been accelerating since about 8 Giga years ago. This was another big surprise which earned the astronomers who found the expansion a Nobel Prize in 2011. To explain the acceleration, we have to consider something new in the Universe which repels the space…"
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| Cacique Caribe | 09 Mar 2018 1:38 p.m. PST |
They need to really be looking for rocks headed our way, specially come up with ways to detect the ones without tails that apparently keep sneaking up on us, like 400-meter (1300 feet) long Oumuamua. Dan
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has a tip to help with your paint storage (and recognition).
