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Freefall achieved on LISA Pathfinder

On Monday, the two cubes housed in the core of ESA's LISA Pathfinder were left to move under the effect of gravity alone – another milestone towards demonstrating technologies to observe gravitational waves from space.

dateFeb 25, 2016 in Space Exploration
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How to build a time machine

Every now and again, we all indulge in dreams about travelling in time. Wouldn't it be wonderful to return to that specific point in the past to change a bad decision or relive an experience – those halcyon days of childhood, ...

dateFeb 24, 2016 in General Physics
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